a hai hai aru aru
a hai hai aru aru .
a WORD_BOUNDARY h a i WORD_BOUNDARY h a i WORD_BOUNDARY a r ɯ WORD_BOUNDARY a r ɯ WORD_BOUNDARY
a WORD_BOUNDARY h a i WORD_BOUNDARY h a i WORD_BOUNDARY a r u WORD_BOUNDARY a r u WORD_BOUNDARY