bwt bwt bwt bwt bwt
bwt bwt bwt bwt bwt .
b eː v eː t eː WORD_BOUNDARY b eː v eː t eː WORD_BOUNDARY b eː v eː t eː WORD_BOUNDARY b eː v eː t eː WORD_BOUNDARY b eː v eː t eː WORD_BOUNDARY
b w t WORD_BOUNDARY b w t WORD_BOUNDARY b w t WORD_BOUNDARY b w t WORD_BOUNDARY b w t WORD_BOUNDARY