tipa+tapa tipa+tapa tipa+tapa
tipa tapa tipa tapa tipa tapa .
t i p a WORD_BOUNDARY t a p a WORD_BOUNDARY t i p a WORD_BOUNDARY t a p a WORD_BOUNDARY t i p a WORD_BOUNDARY t a p a WORD_BOUNDARY
t i p a WORD_BOUNDARY t a p a WORD_BOUNDARY t i p a WORD_BOUNDARY t a p a WORD_BOUNDARY t i p a WORD_BOUNDARY t a p a WORD_BOUNDARY