Mama eh Papa sama Mama
mama eh papa sama mama .
m a m a WORD_BOUNDARY  ɛ h WORD_BOUNDARY p a p a WORD_BOUNDARY s a m a WORD_BOUNDARY m a m a WORD_BOUNDARY
m a m a WORD_BOUNDARY e h WORD_BOUNDARY p a p a WORD_BOUNDARY s a m a WORD_BOUNDARY m a m a WORD_BOUNDARY