tu buat Ari buat Ari
tu buat ari buat ari .
t u WORD_BOUNDARY b u a t WORD_BOUNDARY a r i WORD_BOUNDARY b u a t WORD_BOUNDARY a r i WORD_BOUNDARY
t u WORD_BOUNDARY b u a t WORD_BOUNDARY a r i WORD_BOUNDARY b u a t WORD_BOUNDARY a r i WORD_BOUNDARY