-ol bbb bbe bbk bbl bbo bbt bbw be- beb bee bek bel beo bet bew bkb bke bkk bkl bko bkt bkw blb ble blk bll blo blt bob boe bok bol boo bot bow btb bte btk btl bto btt btw bwb bwk bwl bwo ebb ebe ebk ebl ebo ebt ebw eeb eee eek eel eeo eet eew ekb eke ekl eko ekt elb ele elk ell elo elt elw eo- eob eoe eok eol eoo eot eow etb ete etk etl eto ett etw ewb ewe ewk ewl ewo ewt eww k-t kbb kbe kbk kbl kbo kbw ke- keb kee kek kel keo ket kew kkb kke kkk kkl kkt kl- klb klo klt kob koe kok kol koo kot kow ktb kte ktk ktl kto ktt ktw kw- kwk kwo kwt kww lbb lbe lbk lbl lbo lbt lbw leb lee lek lel leo let lew lkb lkl lkt llb lle llk lll llo llt llw lob loe lok lol loo lot low ltb lte ltk ltl lto ltt lwb lwl lwo lww ob- obb obe obk obl obo obt obw oeb oee oel oeo oet okb oke okk okl oko okw olb ole olk oll olo olt olw oo- oob ook ool ooo oot oow ot- otb ote otk otl oto ott otw owb owe owk owl owo owt oww tbb tbe tbk tbl tbo tbt te- teb tee tek tel teo tet tew tkb tke tkk tkl tko tkt tkw tle tlk tll tlo tlt tlw to- tob toe tok tol too tot tow ttb tte ttk ttl tto ttt ttw twb twe twl two twt tww wbb wbe wbo wbt wbw web wee wek wel weo wet wew wkb wke wko wkt wkw wl- wlb wle wll wlo wlt wlw wob woe wok wol woo wot wow wtb wto wtt wtw wwe wwl wwo wwt www