oh I'm not sure
oh I not sure
co pro:sub neg adj
oh i'm not sure .
oʊ WORD_BOUNDARY aɪ m WORD_BOUNDARY n ɑː t WORD_BOUNDARY ʃ ʊ ɹ WORD_BOUNDARY
o h WORD_BOUNDARY i ' m WORD_BOUNDARY n o t WORD_BOUNDARY s u r e WORD_BOUNDARY