um a racecar driver
um a racecar driver .
ʌ m WORD_BOUNDARY ɐ WORD_BOUNDARY ɹ eɪ s k ɑː ɹ WORD_BOUNDARY d ɹ aɪ v ɚ WORD_BOUNDARY
u m WORD_BOUNDARY a WORD_BOUNDARY r a c e c a r WORD_BOUNDARY d r i v e r WORD_BOUNDARY