id sid tid token lemma pos fx719k44516 1 1 n n X fx719k44516 1 2 / / SYM fx719k44516 1 3 a a PRON fx719k44516 1 4 ( ( PUNCT fx719k44516 1 5 the the DET fx719k44516 1 6 abstract abstract NOUN fx719k44516 1 7 is be AUX fx719k44516 1 8 optional optional ADJ fx719k44516 1 9 for for ADP fx719k44516 1 10 theses thesis NOUN fx719k44516 1 11 ) ) PUNCT