on a roller skate
on a roll skate
prep det:art n n
on a roller skate ?
ɔ n WORD_BOUNDARY ɐ WORD_BOUNDARY ɹ oʊ l ɚ WORD_BOUNDARY s k eɪ t WORD_BOUNDARY
o n WORD_BOUNDARY a WORD_BOUNDARY r o l l e r WORD_BOUNDARY s k a t e WORD_BOUNDARY