uhhuh huh huh huh
uhhuh huh
co co
aha huh huh huh.
ɑ h ɑ WORD_BOUNDARY h ʌ WORD_BOUNDARY h ʌ WORD_BOUNDARY h ʌ WORD_BOUNDARY
a h a WORD_BOUNDARY h u h WORD_BOUNDARY h u h WORD_BOUNDARY h u h . WORD_BOUNDARY