na na um dum dum
dum dum
co co
na na um dum dum .
n ɑː WORD_BOUNDARY n ɑː WORD_BOUNDARY ʌ m WORD_BOUNDARY d ʌ m WORD_BOUNDARY d ʌ m WORD_BOUNDARY
n a WORD_BOUNDARY n a WORD_BOUNDARY u m WORD_BOUNDARY d u m WORD_BOUNDARY d u m WORD_BOUNDARY