biar aja bolak+balik
biar aja bolak balik .
b i a r WORD_BOUNDARY a d̠ʒ a WORD_BOUNDARY b o l a k WORD_BOUNDARY b a l i k WORD_BOUNDARY
b i a r WORD_BOUNDARY a j a WORD_BOUNDARY b o l a k WORD_BOUNDARY b a l i k WORD_BOUNDARY