ndak pa+pa ndak pa+pa
ndak pa pa ndak pa pa .
n d a k WORD_BOUNDARY p a WORD_BOUNDARY p a WORD_BOUNDARY n d a k WORD_BOUNDARY p a WORD_BOUNDARY p a WORD_BOUNDARY
n d a k WORD_BOUNDARY p a WORD_BOUNDARY p a WORD_BOUNDARY n d a k WORD_BOUNDARY p a WORD_BOUNDARY p a WORD_BOUNDARY . WORD_BOUNDARY