tret tet tet tet tret tet tet tet
tret tet tet tet tret tet tet tet .
t r ɛ t WORD_BOUNDARY t ɛ t WORD_BOUNDARY t ɛ t WORD_BOUNDARY t ɛ t WORD_BOUNDARY t r ɛ t WORD_BOUNDARY t ɛ t WORD_BOUNDARY t ɛ t WORD_BOUNDARY t ɛ t WORD_BOUNDARY
t r e t WORD_BOUNDARY t e t WORD_BOUNDARY t e t WORD_BOUNDARY t e t WORD_BOUNDARY t r e t WORD_BOUNDARY t e t WORD_BOUNDARY t e t WORD_BOUNDARY t e t WORD_BOUNDARY