a pa ba pa mama mama aho oho
a pa ba pa mama mama aho oho .
a WORD_BOUNDARY p a WORD_BOUNDARY b a WORD_BOUNDARY p a WORD_BOUNDARY m a m a WORD_BOUNDARY m a m a WORD_BOUNDARY a x o WORD_BOUNDARY o x o WORD_BOUNDARY
a WORD_BOUNDARY p a WORD_BOUNDARY b a WORD_BOUNDARY p a WORD_BOUNDARY m a m a WORD_BOUNDARY m a m a WORD_BOUNDARY a h o WORD_BOUNDARY o h o WORD_BOUNDARY . WORD_BOUNDARY