-al -ol a-a a-b aaa aab aag aak aal aan aao ab- aba abb abg abk abl abn abo ag- aga agb agg agk agl agn ago aka akb akg akk akl akn ako al- ala alb alg alk all aln alo an- ana anb ang ank anl ann ano aoa aob aog aok aol aon aoo baa bab bag bak bal ban bao bba bbb bbg bbk bbl bbn bbo bga bgb bgg bgk bgl bgn bgo bka bkb bkg bkk bkl bkn bko bla blb blg blk bll bln blo bna bnb bng bnk bnl bnn bno boa bob bog bok bol bon boo gaa gab gag gak gal gan gao gba gbg gbk gbl gbn gbo gga ggb ggg ggn ggo gka gkb gkn gko gla glb glg glk gll gln glo gna gnb gnl gnn gno goa gob gog gok gol gon goo ka- kaa kab kag kak kal kan kao kba kbb kbk kbl kbn kbo kga kgb kgl kgo kkb kkk kkl kkn kl- kla klb klg klo kn- kna kng knk knl knn kno koa kob kog kok kol kon koo la- laa lab lag lak lal lan lao lba lbb lbg lbk lbl lbo lga lgb lgg lgk lgl lgn lgo lka lkb lkg lkl lla llb llg llk lll lln llo lna lnb lng lnk lnl lnn lno loa lob log lok lol lon loo naa nab nag nak nal nan nao nba nbb nbg nbk nbl nbn nbo nga ngb ngg ngk ngl ngn ngo nka nkk nkn nko nla nlb nlg nlk nll nln nlo nna nnb nng nnk nnl nnn nno no- noa nob nog nok nol non noo oaa oab oag oak oal oan oao ob- oba obb obg obk obl obn obo oga ogg ogl ogn ogo oka okb okg okk okl oko ola olb olg olk oll oln olo on- ona onb ong onk onl onn ono oo- ooa oob oog ook ool oon ooo