-al -ol a-a a-b aaa aab aak aal aao aau ab- aba abb abk abl abo abu aka akb akk akl ako aku al- ala alb alk all alo alu aoa aob aok aol aoo aou au- aua aub auk aul auo b-u baa bab bak bal bao bau bba bbb bbk bbl bbo bbu bka bkb bkk bkl bko bla blb blk bll blo blu boa bob bok bol boo bou bua bub buk bul buo buu ka- kaa kab kak kal kao kau kba kbb kbk kbl kbo kbu kkb kkk kkl kku kl- kla klb klo klu koa kob kok kol koo kou kub kuk kul kuu la- laa lab lak lal lao lau lba lbb lbk lbl lbo lbu lka lkb lkl lla llb llk lll llo llu loa lob lok lol loo lou lua lub luk lul luo luu oaa oab oak oal oao oau ob- oba obb obk obl obo obu oka okb okk okl oko oku ola olb olk oll olo olu oo- ooa oob ook ool ooo ou- oua ouk oul ouo ua- uaa uab uak ual uao uau uba ubb ubk ubl ubo ubu uka ukb ukk ukl uku ula ulb ulk ull ulo ulu uoa uob uok uol uoo uua uuu