-al -ol a-a a-b a-t aaa aab aal aan aao aat aau ab- aba abb abl abn abo abt abu al- ala alb all aln alo alt alu an- ana anb anl ann ano ant anu aoa aob aol aon aoo aot aou at- ata atb atl atn ato att atu au- aua aub aul aun auo aut b-u baa bab bal ban bao bat bau bba bbb bbl bbn bbo bbt bbu bla blb bll bln blo blt blu bna bnb bnl bnn bno bnt bnu boa bob bol bon boo bot bou bta btb btl btn bto btt btu bua bub bul bun buo but buu la- laa lab lal lan lao lat lau lba lbb lbl lbo lbt lbu lla llb lll lln llo llt llu lna lnb lnl lnn lno lnt lnu loa lob lol lon loo lot lou lta ltb ltl lto ltt ltu lua lub lul lun luo lut luu naa nab nal nan nao nat nau nba nbb nbl nbn nbo nbt nbu nla nlb nll nln nlo nlt nlu nna nnb nnl nnn nno nnt nnu no- noa nob nol non noo not nou nta ntb ntn nto ntt ntu nua nub nul nun nuo nut nuu oaa oab oal oan oao oat oau ob- oba obb obl obn obo obt obu ola olb oll oln olo olt olu on- ona onb onl onn ono ont onu oo- ooa oob ool oon ooo oot ot- ota otb otl otn oto ott otu ou- oua oul oun ouo out taa tab tal tan tao tat tau tba tbb tbl tbn tbo tbt tbu tla tll tln tlo tlt tlu tna tnb tnl tnn tno tnt to- toa tob tol ton too tot tou tta ttb ttl ttn tto ttt ttu tua tub tul tun tuo tut tuu ua- uaa uab ual uan uao uat uau uba ubb ubl ubn ubo ubt ubu ula ulb ull uln ulo ult ulu un- una unb unl unn uno unt unu uoa uob uol uon uoo uot uta utb utl utn uto utt utu uua uun uut uuu