-ol bbb bbi bbl bbo bbt bbw bi- bib bii bil bio bit biw blb bli bll blo blt bob boi bol boo bot bow btb bti btl bto btt btw bwb bwi bwl bwo ibb ibi ibl ibo ibt ibw iib iii iil iio iit iiw il- ilb ili ill ilo ilt io- iob ioi iol ioo iot iow itb iti itl ito itt iwb iwi iwl iwo iwt iww lbb lbi lbl lbo lbt lbw lib lii lil lio lit liw llb lli lll llo llt llw lob loi lol loo lot low ltb lti ltl lto ltt lwb lwi lwl lwo lww o-i ob- obb obi obl obo obt obw oib oii oil oio oit olb oli oll olo olt olw oo- oob ooi ool ooo oot oow ot- otb oti otl oto ott otw owb owi owl owo owt oww tbb tbi tbl tbo tbt tib tii til tio tit tiw tli tll tlo tlt tlw to- tob toi tol too tot tow ttb tti ttl tto ttt ttw twb twi twl two twt tww wbb wbi wbo wbt wbw wib wii wil wit wl- wlb wli wll wlo wlt wlw wob woi wol woo wot wow wtb wti wto wtt wtw wwi wwl wwo wwt www