aku aku aku aku di depan
aku aku aku aku di depan .
a k u WORD_BOUNDARY  a k u WORD_BOUNDARY  a k u WORD_BOUNDARY  a k u WORD_BOUNDARY d i WORD_BOUNDARY d ɛ p a n WORD_BOUNDARY
a k u WORD_BOUNDARY a k u WORD_BOUNDARY a k u WORD_BOUNDARY a k u WORD_BOUNDARY d i WORD_BOUNDARY d e p a n WORD_BOUNDARY