un o ke rudxune bord
un o ke rudxune bord .
u n WORD_BOUNDARY o WORD_BOUNDARY k e WORD_BOUNDARY r u d k s u n e WORD_BOUNDARY b o r d WORD_BOUNDARY
u n WORD_BOUNDARY o WORD_BOUNDARY k e WORD_BOUNDARY r u d x u n e WORD_BOUNDARY b o r d WORD_BOUNDARY