-al -ol a-a a-b a-t aaa aab aak aal aan aao aat ab- aba abb abk abl abn abo abt aka akb akk akl akn ako al- ala alb alk all aln alo alt an- ana anb ank anl ann ano ant aoa aob aok aol aon aoo aot at- ata atb atl atn ato att baa bab bak bal ban bao bat bba bbb bbk bbl bbn bbo bbt bka bkb bkk bkl bkn bko bkt bla blb blk bll bln blo blt bna bnb bnk bnl bnn bno bnt boa bob bok bol bon boo bot bta btb btk btl btn bto btt k-t ka- kaa kab kak kal kan kao kat kba kbb kbk kbl kbn kbo kkb kkk kkl kkn kkt kl- kla klb klo klt kn- kna knk knl knn kno knt koa kob kok kol kon koo kot kta ktb ktk ktl ktn kto ktt la- laa lab lak lal lan lao lat lba lbb lbk lbl lbo lbt lka lkb lkl lkt lla llb llk lll lln llo llt lna lnb lnk lnl lnn lno lnt loa lob lok lol lon loo lot lta ltb ltk ltl lto ltt naa nab nak nal nan nao nat nba nbb nbk nbl nbn nbo nbt nka nkk nkn nko nkt nla nlb nlk nll nln nlo nlt nna nnb nnk nnl nnn nno nnt no- noa nob nok nol non noo not nta ntb ntk ntn nto ntt oaa oab oak oal oan oao oat ob- oba obb obk obl obn obo obt oka okb okk okl oko ola olb olk oll oln olo olt on- ona onb onk onl onn ono ont oo- ooa oob ook ool oon ooo oot ot- ota otb otk otl otn oto ott taa tab tak tal tan tao tat tba tbb tbk tbl tbn tbo tbt tka tkb tkk tkl tko tkt tla tlk tll tln tlo tlt tna tnb tnk tnl tnn tno tnt to- toa tob tok tol ton too tot tta ttb ttk ttl ttn tto ttt