-ol b-u bbb bbh bbk bbl bbo bbu bhb bhh bhk bhl bho bhu bkb bkk bkl bko blb blh blk bll blo blu bob boh bok bol boo bou bub buh buk bul buo buu hbb hbh hbk hbl hbo hbu hhb hhh hhk hhl hho hhu hkb hkh hkk hkl hko hku hlb hlh hll hlo hlu hob hoh hok hol hoo hou hub huh huk hul huo huu kbb kbh kbk kbl kbo kbu khh khk kho khu kkb kkh kkk kkl kku kl- klb klh klo klu kob koh kok kol koo kou kub kuh kuk kul kuu lbb lbh lbk lbl lbo lbu lhb lhh lhk lho lhu lkb lkh lkl llb llk lll llo llu lob loh lok lol loo lou lub luh luk lul luo luu ob- obb obh obk obl obo obu ohh ohl oho ohu okb okk okl oko oku olb olk oll olo olu oo- oob ooh ook ool ooo ou- ouh ouk oul ouo ubb ubh ubk ubl ubo ubu uhb uhh uhl uho uhu ukb ukk ukl uku ulb ulk ull ulo ulu uob uok uol uoo uuu