however not so sure
however not so sure .
h aʊ ɛ v ɚ WORD_BOUNDARY n ɑː t WORD_BOUNDARY s oʊ WORD_BOUNDARY ʃ ʊ ɹ WORD_BOUNDARY
h o w e v e r WORD_BOUNDARY n o t WORD_BOUNDARY s o WORD_BOUNDARY s u r e WORD_BOUNDARY