ya Timo ya bulak+balik
ya timo ya bulak balik .
j a WORD_BOUNDARY t i m o WORD_BOUNDARY j a WORD_BOUNDARY b u l a k WORD_BOUNDARY b a l i k WORD_BOUNDARY
y a WORD_BOUNDARY t i m o WORD_BOUNDARY y a WORD_BOUNDARY b u l a k WORD_BOUNDARY b a l i k WORD_BOUNDARY . WORD_BOUNDARY