o udah abis ya dua
o udah abis ya dua .
o WORD_BOUNDARY  u d a h WORD_BOUNDARY a b i s WORD_BOUNDARY j a WORD_BOUNDARY d u a WORD_BOUNDARY
o WORD_BOUNDARY u d a h WORD_BOUNDARY a b i s WORD_BOUNDARY y a WORD_BOUNDARY d u a WORD_BOUNDARY