he+em kwek kwek kwek
he em kwek kwek kwek .
h ɛ WORD_BOUNDARY  ɛ m WORD_BOUNDARY k w ɛ k WORD_BOUNDARY k w ɛ k WORD_BOUNDARY k w ɛ k WORD_BOUNDARY
h e WORD_BOUNDARY e m WORD_BOUNDARY k w e k WORD_BOUNDARY k w e k WORD_BOUNDARY k w e k WORD_BOUNDARY