tu ada kan buat Opi kan
tu ada kan buat opi kan ?
t u WORD_BOUNDARY  a d a WORD_BOUNDARY k a n WORD_BOUNDARY b u a t WORD_BOUNDARY o p i WORD_BOUNDARY k a n WORD_BOUNDARY
t u WORD_BOUNDARY a d a WORD_BOUNDARY k a n WORD_BOUNDARY b u a t WORD_BOUNDARY o p i WORD_BOUNDARY k a n WORD_BOUNDARY