Ibu Erni apa Ibu Ida
ibu erni apa ibu ida ?
i b u WORD_BOUNDARY  ɛ r n i WORD_BOUNDARY  a p a WORD_BOUNDARY  i b u WORD_BOUNDARY  i d a WORD_BOUNDARY
i b u WORD_BOUNDARY e r n i WORD_BOUNDARY a p a WORD_BOUNDARY i b u WORD_BOUNDARY i d a WORD_BOUNDARY