opo+opo di belakang
opo opo di belakang .
o p o WORD_BOUNDARY o p o WORD_BOUNDARY d i WORD_BOUNDARY b ə l a k a ŋ WORD_BOUNDARY
o p o WORD_BOUNDARY o p o WORD_BOUNDARY d i WORD_BOUNDARY b e l a k a n g WORD_BOUNDARY . WORD_BOUNDARY