bbb bbi bbl bbt bbw bi- bib bii bil bit biw blb bli bll blt btb bti btl btt btw bwb bwi bwl ibb ibi ibl ibt ibw iib iii iil iit iiw il- ilb ili ill ilt itb iti itl itt iwb iwi iwl iwt iww lbb lbi lbl lbt lbw lib lii lil lit liw llb lli lll llt llw ltb lti ltl ltt lwb lwi lwl lww tbb tbi tbl tbt tib tii til tit tiw tli tll tlt tlw ttb tti ttl ttt ttw twb twi twl twt tww wbb wbi wbt wbw wib wii wil wit wl- wlb wli wll wlt wlw wtb wti wtt wtw wwi wwl wwt www