on and on they flew
on and on they fly
adv coord adv pro:sub v
on and on they flew .
ɔ n WORD_BOUNDARY æ n d WORD_BOUNDARY ɔ n WORD_BOUNDARY ð eɪ WORD_BOUNDARY f l uː WORD_BOUNDARY
o n WORD_BOUNDARY a n d WORD_BOUNDARY o n WORD_BOUNDARY t h e y WORD_BOUNDARY f l e w WORD_BOUNDARY