bouncing up and down
bounce up and down
part adv coord adv
bouncing up and down .
b aʊ n s ɪ ŋ WORD_BOUNDARY ʌ p WORD_BOUNDARY æ n d WORD_BOUNDARY d aʊ n WORD_BOUNDARY
b o u n c i n g WORD_BOUNDARY u p WORD_BOUNDARY a n d WORD_BOUNDARY d o w n WORD_BOUNDARY