id sid tid token lemma pos h415p843f9m 1 1 experimental experimental ADJ h415p843f9m 1 2 results result NOUN h415p843f9m 1 3 and and CCONJ h415p843f9m 1 4 analysis analysis NOUN h415p843f9m 1 5 of of ADP h415p843f9m 1 6 an an DET h415p843f9m 1 7 airfoil airfoil NOUN h415p843f9m 1 8 oscillated oscillate VERB h415p843f9m 1 9 in in ADP h415p843f9m 1 10 pitch pitch NOUN h415p843f9m 1 11 are be AUX h415p843f9m 1 12 presented present VERB h415p843f9m 1 13 at at ADP h415p843f9m 1 14 mach mach NOUN h415p843f9m 1 15 numbers number NOUN h415p843f9m 1 16 from from ADP h415p843f9m 1 17 0.2 0.2 NUM h415p843f9m 1 18 to to ADP h415p843f9m 1 19 0.6 0.6 NUM h415p843f9m 1 20 and and CCONJ h415p843f9m 1 21 reynolds reynold NOUN h415p843f9m 1 22 numbers number VERB h415p843f9m 1 23 up up ADV h415p843f9m 1 24 to to PART h415p843f9m 1 25 3.5 3.5 NUM h415p843f9m 1 26 $ $ NUM h415p843f9m 1 27 imes ime NOUN h415p843f9m 1 28 10 10 NUM h415p843f9m 1 29 ^ ^ NOUN h415p843f9m 1 30 6$. 6$. VERB h415p843f9m 1 31 the the DET h415p843f9m 1 32 design design NOUN h415p843f9m 1 33 of of ADP h415p843f9m 1 34 a a DET h415p843f9m 1 35 novel novel ADJ h415p843f9m 1 36 pitch pitch NOUN h415p843f9m 1 37 - - PUNCT h415p843f9m 1 38 mechanism mechanism NOUN h415p843f9m 1 39 and and CCONJ h415p843f9m 1 40 dynamic dynamic ADJ h415p843f9m 1 41 stall stall NOUN h415p843f9m 1 42 rig rig NOUN h415p843f9m 1 43 is be AUX h415p843f9m 1 44 discussed discuss VERB h415p843f9m 1 45 . . PUNCT h415p843f9m 2 1 high high ADJ h415p843f9m 2 2 - - PUNCT h415p843f9m 2 3 speed speed NOUN h415p843f9m 2 4 surface surface NOUN h415p843f9m 2 5 pressures pressure NOUN h415p843f9m 2 6 and and CCONJ h415p843f9m 2 7 the the DET h415p843f9m 2 8 airfoil airfoil NOUN h415p843f9m 2 9 's 's PART h415p843f9m 2 10 instantaneous instantaneous ADJ h415p843f9m 2 11 incidence incidence NOUN h415p843f9m 2 12 angle angle NOUN h415p843f9m 2 13 are be AUX h415p843f9m 2 14 simultaneously simultaneously ADV h415p843f9m 2 15 sampled sample VERB h415p843f9m 2 16 and and CCONJ h415p843f9m 2 17 used use VERB h415p843f9m 2 18 to to PART h415p843f9m 2 19 characterize characterize VERB h415p843f9m 2 20 the the DET h415p843f9m 2 21 temporal temporal ADJ h415p843f9m 2 22 pressure pressure NOUN h415p843f9m 2 23 field field NOUN h415p843f9m 2 24 , , PUNCT h415p843f9m 2 25 static static ADJ h415p843f9m 2 26 and and CCONJ h415p843f9m 2 27 dynamic dynamic ADJ h415p843f9m 2 28 loading loading NOUN h415p843f9m 2 29 , , PUNCT h415p843f9m 2 30 and and CCONJ h415p843f9m 2 31 cycle cycle NOUN h415p843f9m 2 32 and and CCONJ h415p843f9m 2 33 time time NOUN h415p843f9m 2 34 - - PUNCT h415p843f9m 2 35 resolved resolve VERB h415p843f9m 2 36 aerodynamic aerodynamic ADJ h415p843f9m 2 37 stability stability NOUN h415p843f9m 2 38 under under ADP h415p843f9m 2 39 harmonic harmonic ADJ h415p843f9m 2 40 prescribed prescribe VERB h415p843f9m 2 41 incidences incidence NOUN h415p843f9m 2 42 . . PUNCT h415p843f9m 3 1 this this DET h415p843f9m 3 2 work work NOUN h415p843f9m 3 3 focuses focus VERB h415p843f9m 3 4 on on ADP h415p843f9m 3 5 three three NUM h415p843f9m 3 6 distinct distinct ADJ h415p843f9m 3 7 problems problem NOUN h415p843f9m 3 8 in in ADP h415p843f9m 3 9 regard regard NOUN h415p843f9m 3 10 to to ADP h415p843f9m 3 11 dynamic dynamic ADJ h415p843f9m 3 12 stall stall NOUN h415p843f9m 3 13 and and CCONJ h415p843f9m 3 14 the the DET h415p843f9m 3 15 influence influence NOUN h415p843f9m 3 16 of of ADP h415p843f9m 3 17 mach mach NOUN h415p843f9m 3 18 number number NOUN h415p843f9m 3 19 , , PUNCT h415p843f9m 3 20 as as SCONJ h415p843f9m 3 21 follows follow VERB h415p843f9m 3 22 : : PUNCT h415p843f9m 3 23 the the DET h415p843f9m 3 24 stall stall PROPN h415p843f9m 3 25 vortex vortex NOUN h415p843f9m 3 26 convection convection NOUN h415p843f9m 3 27 properties property NOUN h415p843f9m 3 28 : : PUNCT h415p843f9m 3 29 the the DET h415p843f9m 3 30 low low ADJ h415p843f9m 3 31 pressure pressure NOUN h415p843f9m 3 32 signature signature NOUN h415p843f9m 3 33 of of ADP h415p843f9m 3 34 the the DET h415p843f9m 3 35 stall stall PROPN h415p843f9m 3 36 vortex vortex PROPN h415p843f9m 3 37 's 's PART h415p843f9m 3 38 travel travel NOUN h415p843f9m 3 39 aft aft NOUN h415p843f9m 3 40 over over ADP h415p843f9m 3 41 the the DET h415p843f9m 3 42 chord chord NOUN h415p843f9m 3 43 is be AUX h415p843f9m 3 44 tracked track VERB h415p843f9m 3 45 through through ADP h415p843f9m 3 46 deep deep ADJ h415p843f9m 3 47 dynamic dynamic ADJ h415p843f9m 3 48 stall stall NOUN h415p843f9m 3 49 conditions condition NOUN h415p843f9m 3 50 and and CCONJ h415p843f9m 3 51 moderate moderate ADJ h415p843f9m 3 52 to to ADP h415p843f9m 3 53 high high ADJ h415p843f9m 3 54 reduced reduce VERB h415p843f9m 3 55 frequencies frequency NOUN h415p843f9m 3 56 . . PUNCT h415p843f9m 4 1 the the DET h415p843f9m 4 2 gestation gestation NOUN h415p843f9m 4 3 or or CCONJ h415p843f9m 4 4 growth growth NOUN h415p843f9m 4 5 period period NOUN h415p843f9m 4 6 of of ADP h415p843f9m 4 7 the the DET h415p843f9m 4 8 dynamic dynamic ADJ h415p843f9m 4 9 stall stall NOUN h415p843f9m 4 10 vortex vortex NOUN h415p843f9m 4 11 and and CCONJ h415p843f9m 4 12 its its PRON h415p843f9m 4 13 ultimate ultimate ADJ h415p843f9m 4 14 convection convection NOUN h415p843f9m 4 15 rate rate NOUN h415p843f9m 4 16 are be AUX h415p843f9m 4 17 quantified quantify VERB h415p843f9m 4 18 . . PUNCT h415p843f9m 5 1 increased increase VERB h415p843f9m 5 2 mach mach NOUN h415p843f9m 5 3 number number NOUN h415p843f9m 5 4 decreased decrease VERB h415p843f9m 5 5 the the DET h415p843f9m 5 6 gestation gestation NOUN h415p843f9m 5 7 period period NOUN h415p843f9m 5 8 of of ADP h415p843f9m 5 9 the the DET h415p843f9m 5 10 stall stall PROPN h415p843f9m 5 11 vortex vortex NOUN h415p843f9m 5 12 and and CCONJ h415p843f9m 5 13 the the DET h415p843f9m 5 14 duration duration NOUN h415p843f9m 5 15 the the DET h415p843f9m 5 16 stall stall NOUN h415p843f9m 5 17 vortex vortex NOUN h415p843f9m 5 18 resided reside VERB h415p843f9m 5 19 over over ADP h415p843f9m 5 20 the the DET h415p843f9m 5 21 airfoil airfoil NOUN h415p843f9m 5 22 chord chord NOUN h415p843f9m 5 23 . . PUNCT h415p843f9m 6 1 the the DET h415p843f9m 6 2 surface surface NOUN h415p843f9m 6 3 pressures pressure NOUN h415p843f9m 6 4 and and CCONJ h415p843f9m 6 5 surface surface NOUN h415p843f9m 6 6 pressure pressure NOUN h415p843f9m 6 7 gradients gradient NOUN h415p843f9m 6 8 found find VERB h415p843f9m 6 9 at at ADP h415p843f9m 6 10 low low ADJ h415p843f9m 6 11 - - PUNCT h415p843f9m 6 12 speed speed NOUN h415p843f9m 6 13 as as SCONJ h415p843f9m 6 14 the the DET h415p843f9m 6 15 stall stall NOUN h415p843f9m 6 16 vortex vortex NOUN h415p843f9m 6 17 migrates migrate VERB h415p843f9m 6 18 over over ADP h415p843f9m 6 19 the the DET h415p843f9m 6 20 chord chord NOUN h415p843f9m 6 21 are be AUX h415p843f9m 6 22 shown show VERB h415p843f9m 6 23 to to PART h415p843f9m 6 24 be be AUX h415p843f9m 6 25 substantially substantially ADV h415p843f9m 6 26 altered alter VERB h415p843f9m 6 27 following follow VERB h415p843f9m 6 28 shock shock NOUN h415p843f9m 6 29 - - PUNCT h415p843f9m 6 30 induced induce VERB h415p843f9m 6 31 dynamic dynamic ADJ h415p843f9m 6 32 stall stall NOUN h415p843f9m 6 33 . . PUNCT h415p843f9m 7 1 shock shock NOUN h415p843f9m 7 2 induced induce VERB h415p843f9m 7 3 dynamic dynamic ADJ h415p843f9m 7 4 stall stall NOUN h415p843f9m 7 5 and and CCONJ h415p843f9m 7 6 surface surface NOUN h415p843f9m 7 7 flow flow NOUN h415p843f9m 7 8 features feature VERB h415p843f9m 7 9 : : PUNCT h415p843f9m 7 10 a a DET h415p843f9m 7 11 focused focused ADJ h415p843f9m 7 12 schlieren schlieren ADJ h415p843f9m 7 13 system system NOUN h415p843f9m 7 14 is be AUX h415p843f9m 7 15 designed design VERB h415p843f9m 7 16 and and CCONJ h415p843f9m 7 17 constructed construct VERB h415p843f9m 7 18 to to PART h415p843f9m 7 19 glean glean VERB h415p843f9m 7 20 information information NOUN h415p843f9m 7 21 regarding regard VERB h415p843f9m 7 22 the the DET h415p843f9m 7 23 temporal temporal ADJ h415p843f9m 7 24 evolution evolution NOUN h415p843f9m 7 25 of of ADP h415p843f9m 7 26 shock shock NOUN h415p843f9m 7 27 structures structure NOUN h415p843f9m 7 28 on on ADP h415p843f9m 7 29 the the DET h415p843f9m 7 30 airfoil airfoil NOUN h415p843f9m 7 31 's 's PART h415p843f9m 7 32 upper upper ADJ h415p843f9m 7 33 surface surface NOUN h415p843f9m 7 34 . . PUNCT h415p843f9m 8 1 the the DET h415p843f9m 8 2 flow flow NOUN h415p843f9m 8 3 visualization visualization NOUN h415p843f9m 8 4 is be AUX h415p843f9m 8 5 used use VERB h415p843f9m 8 6 to to PART h415p843f9m 8 7 interpret interpret VERB h415p843f9m 8 8 the the DET h415p843f9m 8 9 corresponding corresponding ADJ h415p843f9m 8 10 surface surface NOUN h415p843f9m 8 11 pressures pressure NOUN h415p843f9m 8 12 measured measure VERB h415p843f9m 8 13 through through ADP h415p843f9m 8 14 the the DET h415p843f9m 8 15 on on ADP h415p843f9m 8 16 - - PUNCT h415p843f9m 8 17 board board NOUN h415p843f9m 8 18 pressure pressure NOUN h415p843f9m 8 19 instrumentation instrumentation NOUN h415p843f9m 8 20 . . PUNCT h415p843f9m 9 1 a a DET h415p843f9m 9 2 $ $ SYM h415p843f9m 9 3 lambda$-shock lambda$-shock NOUN h415p843f9m 9 4 is be AUX h415p843f9m 9 5 shown show VERB h415p843f9m 9 6 to to PART h415p843f9m 9 7 develop develop VERB h415p843f9m 9 8 near near ADP h415p843f9m 9 9 the the DET h415p843f9m 9 10 leading leading ADJ h415p843f9m 9 11 - - PUNCT h415p843f9m 9 12 edge edge NOUN h415p843f9m 9 13 . . PUNCT h415p843f9m 10 1 the the DET h415p843f9m 10 2 foot foot NOUN h415p843f9m 10 3 of of ADP h415p843f9m 10 4 the the DET h415p843f9m 10 5 developing develop VERB h415p843f9m 10 6 shock shock NOUN h415p843f9m 10 7 remains remain VERB h415p843f9m 10 8 near near ADP h415p843f9m 10 9 the the DET h415p843f9m 10 10 leading leading ADJ h415p843f9m 10 11 - - PUNCT h415p843f9m 10 12 edge edge NOUN h415p843f9m 10 13 whereas whereas SCONJ h415p843f9m 10 14 the the DET h415p843f9m 10 15 shock shock NOUN h415p843f9m 10 16 front front NOUN h415p843f9m 10 17 travels travel VERB h415p843f9m 10 18 aft aft NOUN h415p843f9m 10 19 over over ADP h415p843f9m 10 20 the the DET h415p843f9m 10 21 chord chord NOUN h415p843f9m 10 22 . . PUNCT h415p843f9m 11 1 at at ADP h415p843f9m 11 2 a a DET h415p843f9m 11 3 critical critical ADJ h415p843f9m 11 4 incidence incidence NOUN h415p843f9m 11 5 , , PUNCT h415p843f9m 11 6 the the DET h415p843f9m 11 7 flow flow NOUN h415p843f9m 11 8 separates separate VERB h415p843f9m 11 9 , , PUNCT h415p843f9m 11 10 and and CCONJ h415p843f9m 11 11 an an DET h415p843f9m 11 12 off off ADJ h415p843f9m 11 13 - - PUNCT h415p843f9m 11 14 surface surface NOUN h415p843f9m 11 15 shock shock NOUN h415p843f9m 11 16 structure structure NOUN h415p843f9m 11 17 propagates propagate VERB h415p843f9m 11 18 upstream upstream ADV h415p843f9m 11 19 toward toward ADP h415p843f9m 11 20 the the DET h415p843f9m 11 21 leading leading ADJ h415p843f9m 11 22 - - PUNCT h415p843f9m 11 23 edge edge NOUN h415p843f9m 11 24 . . PUNCT h415p843f9m 12 1 the the DET h415p843f9m 12 2 effect effect NOUN h415p843f9m 12 3 of of ADP h415p843f9m 12 4 two two NUM h415p843f9m 12 5 - - PUNCT h415p843f9m 12 6 dimensional dimensional ADJ h415p843f9m 12 7 trips trip NOUN h415p843f9m 12 8 on on ADP h415p843f9m 12 9 the the DET h415p843f9m 12 10 shock shock NOUN h415p843f9m 12 11 's 's PART h415p843f9m 12 12 formation formation NOUN h415p843f9m 12 13 is be AUX h415p843f9m 12 14 examined.compressibility examined.compressibility NOUN h415p843f9m 12 15 effects effect NOUN h415p843f9m 12 16 on on ADP h415p843f9m 12 17 aerodynamic aerodynamic ADJ h415p843f9m 12 18 damping damping NOUN h415p843f9m 12 19 : : PUNCT h415p843f9m 12 20 the the DET h415p843f9m 12 21 ensemble ensemble NOUN h415p843f9m 12 22 averaged average VERB h415p843f9m 12 23 pitch pitch NOUN h415p843f9m 12 24 - - PUNCT h415p843f9m 12 25 moment moment NOUN h415p843f9m 12 26 is be AUX h415p843f9m 12 27 used use VERB h415p843f9m 12 28 to to PART h415p843f9m 12 29 determine determine VERB h415p843f9m 12 30 the the DET h415p843f9m 12 31 net net ADJ h415p843f9m 12 32 cycle cycle NOUN h415p843f9m 12 33 damping damp VERB h415p843f9m 12 34 . . PUNCT h415p843f9m 13 1 the the DET h415p843f9m 13 2 transient transient ADJ h415p843f9m 13 3 damping damp VERB h415p843f9m 13 4 , , PUNCT h415p843f9m 13 5 discussed discuss VERB h415p843f9m 13 6 here here ADV h415p843f9m 13 7 for for ADP h415p843f9m 13 8 the the DET h415p843f9m 13 9 first first ADJ h415p843f9m 13 10 time time NOUN h415p843f9m 13 11 , , PUNCT h415p843f9m 13 12 is be AUX h415p843f9m 13 13 shown show VERB h415p843f9m 13 14 to to PART h415p843f9m 13 15 be be AUX h415p843f9m 13 16 calculable calculable ADJ h415p843f9m 13 17 through through ADP h415p843f9m 13 18 a a DET h415p843f9m 13 19 hilbert hilbert NOUN h415p843f9m 13 20 transform transform NOUN h415p843f9m 13 21 of of ADP h415p843f9m 13 22 the the DET h415p843f9m 13 23 pitch pitch NOUN h415p843f9m 13 24 - - PUNCT h415p843f9m 13 25 moment moment NOUN h415p843f9m 13 26 . . PUNCT h415p843f9m 14 1 this this DET h415p843f9m 14 2 time time NOUN h415p843f9m 14 3 - - PUNCT h415p843f9m 14 4 based base VERB h415p843f9m 14 5 damping damp VERB h415p843f9m 14 6 analysis analysis NOUN h415p843f9m 14 7 offers offer VERB h415p843f9m 14 8 new new ADJ h415p843f9m 14 9 incite incite NOUN h415p843f9m 14 10 into into ADP h415p843f9m 14 11 the the DET h415p843f9m 14 12 mechanism mechanism NOUN h415p843f9m 14 13 of of ADP h415p843f9m 14 14 stall stall NOUN h415p843f9m 14 15 flutter flutter NOUN h415p843f9m 14 16 in in ADP h415p843f9m 14 17 helicopter helicopter NOUN h415p843f9m 14 18 rotor rotor NOUN h415p843f9m 14 19 operations operation NOUN h415p843f9m 14 20 . . PUNCT h415p843f9m 15 1 the the DET h415p843f9m 15 2 test test NOUN h415p843f9m 15 3 includes include VERB h415p843f9m 15 4 a a DET h415p843f9m 15 5 comprehensive comprehensive ADJ h415p843f9m 15 6 investigation investigation NOUN h415p843f9m 15 7 of of ADP h415p843f9m 15 8 forcing force VERB h415p843f9m 15 9 parameters parameter NOUN h415p843f9m 15 10 ( ( PUNCT h415p843f9m 15 11 mean mean VERB h415p843f9m 15 12 angle angle NOUN h415p843f9m 15 13 of of ADP h415p843f9m 15 14 attack attack NOUN h415p843f9m 15 15 , , PUNCT h415p843f9m 15 16 amplitude amplitude NOUN h415p843f9m 15 17 , , PUNCT h415p843f9m 15 18 and and CCONJ h415p843f9m 15 19 reduced reduce VERB h415p843f9m 15 20 frequency frequency NOUN h415p843f9m 15 21 ) ) PUNCT h415p843f9m 15 22 , , PUNCT h415p843f9m 15 23 including include VERB h415p843f9m 15 24 the the DET h415p843f9m 15 25 effect effect NOUN h415p843f9m 15 26 of of ADP h415p843f9m 15 27 free free ADJ h415p843f9m 15 28 ( ( PUNCT h415p843f9m 15 29 un un PROPN h415p843f9m 15 30 - - NOUN h415p843f9m 15 31 tripped trip VERB h415p843f9m 15 32 ) ) PUNCT h415p843f9m 15 33 and and CCONJ h415p843f9m 15 34 forced force VERB h415p843f9m 15 35 ( ( PUNCT h415p843f9m 15 36 tripped trip VERB h415p843f9m 15 37 ) ) PUNCT h415p843f9m 15 38 laminar laminar NOUN h415p843f9m 15 39 to to ADP h415p843f9m 15 40 turbulent turbulent ADJ h415p843f9m 15 41 transition transition NOUN h415p843f9m 15 42 . . PUNCT h415p843f9m 16 1 it it PRON h415p843f9m 16 2 is be AUX h415p843f9m 16 3 demonstrated demonstrate VERB h415p843f9m 16 4 that that SCONJ h415p843f9m 16 5 the the DET h415p843f9m 16 6 emph{cycle emph{cycle NOUN h415p843f9m 16 7 - - PUNCT h415p843f9m 16 8 integrated integrate VERB h415p843f9m 16 9 } } PUNCT h415p843f9m 16 10 aerodynamic aerodynamic ADJ h415p843f9m 16 11 damping damp VERB h415p843f9m 16 12 coefficient coefficient NOUN h415p843f9m 16 13 masks mask VERB h415p843f9m 16 14 much much ADJ h415p843f9m 16 15 of of ADP h415p843f9m 16 16 the the DET h415p843f9m 16 17 physics physics NOUN h415p843f9m 16 18 underlying underlie VERB h415p843f9m 16 19 the the DET h415p843f9m 16 20 destabilizing destabilizing ADJ h415p843f9m 16 21 effect effect NOUN h415p843f9m 16 22 of of ADP h415p843f9m 16 23 the the DET h415p843f9m 16 24 dynamic dynamic ADJ h415p843f9m 16 25 stall stall NOUN h415p843f9m 16 26 process process NOUN h415p843f9m 16 27 . . PUNCT h415p843f9m 17 1 in in ADP h415p843f9m 17 2 particular particular ADJ h415p843f9m 17 3 , , PUNCT h415p843f9m 17 4 conditions condition NOUN h415p843f9m 17 5 that that PRON h415p843f9m 17 6 exhibit exhibit VERB h415p843f9m 17 7 positive positive ADJ h415p843f9m 17 8 cycle cycle NOUN h415p843f9m 17 9 - - PUNCT h415p843f9m 17 10 integrated integrate VERB h415p843f9m 17 11 aerodynamic aerodynamic ADJ h415p843f9m 17 12 damping damping NOUN h415p843f9m 17 13 , , PUNCT h415p843f9m 17 14 often often ADV h415p843f9m 17 15 include include VERB h415p843f9m 17 16 time time NOUN h415p843f9m 17 17 intervals interval NOUN h415p843f9m 17 18 of of ADP h415p843f9m 17 19 large large ADJ h415p843f9m 17 20 negative negative ADJ h415p843f9m 17 21 aerodynamic aerodynamic ADJ h415p843f9m 17 22 damping damp VERB h415p843f9m 17 23 during during ADP h415p843f9m 17 24 the the DET h415p843f9m 17 25 pitching pitching NOUN h415p843f9m 17 26 cycle cycle NOUN h415p843f9m 17 27 . . PUNCT h415p843f9m 18 1 these these DET h415p843f9m 18 2 negatively negatively ADV h415p843f9m 18 3 - - PUNCT h415p843f9m 18 4 damped damp VERB h415p843f9m 18 5 portions portion NOUN h415p843f9m 18 6 of of ADP h415p843f9m 18 7 the the DET h415p843f9m 18 8 pitch pitch NOUN h415p843f9m 18 9 cycle cycle NOUN h415p843f9m 18 10 could could AUX h415p843f9m 18 11 account account VERB h415p843f9m 18 12 for for ADP h415p843f9m 18 13 high high ADJ h415p843f9m 18 14 - - PUNCT h415p843f9m 18 15 frequency frequency NOUN h415p843f9m 18 16 stall stall NOUN h415p843f9m 18 17 flutter flutter VERB h415p843f9m 18 18 divergence divergence NOUN h415p843f9m 18 19 from from ADP h415p843f9m 18 20 the the DET h415p843f9m 18 21 rotor rotor NOUN h415p843f9m 18 22 control control NOUN h415p843f9m 18 23 input input NOUN h415p843f9m 18 24 in in ADP h415p843f9m 18 25 helicopter helicopter NOUN h415p843f9m 18 26 applications application NOUN h415p843f9m 18 27 . . PUNCT