bisa nulis harus bisa baca
bisa nulis harus bisa baca .
b i s a WORD_BOUNDARY n u l i s WORD_BOUNDARY h a r u s WORD_BOUNDARY b i s a WORD_BOUNDARY b a t̠ʃ a WORD_BOUNDARY
b i s a WORD_BOUNDARY n u l i s WORD_BOUNDARY h a r u s WORD_BOUNDARY b i s a WORD_BOUNDARY b a c a WORD_BOUNDARY