-al -ol a-a a-b aaa aab aae aal aan aao aau ab- aba abb abe abl abn abo abu aea aeb aee ael aen aeo aeu al- ala alb ale all aln alo alu an- ana anb ane anl ann ano anu aoa aob aoe aol aon aoo aou au- aua aub aue aul aun auo b-u baa bab bae bal ban bao bau bba bbb bbe bbl bbn bbo bbu be- bea beb bee bel ben beo beu bla blb ble bll bln blo blu bna bnb bne bnl bnn bno bnu boa bob boe bol bon boo bou bua bub bue bul bun buo buu eaa eab eae eal ean eao eau eba ebb ebe ebl ebn ebo ebu eea eeb eee eel een eeo ela elb ele ell eln elo elu en- ena enb ene enl enn eno enu eo- eoa eob eoe eol eon eoo eou eu- eua eub eue eul eun la- laa lab lae lal lan lao lau lba lbb lbe lbl lbo lbu lea leb lee lel len leo leu lla llb lle lll lln llo llu lna lnb lne lnl lnn lno lnu loa lob loe lol lon loo lou lua lub lue lul lun luo luu naa nab nae nal nan nao nau nba nbb nbe nbl nbn nbo nbu ne- nea neb nee nel nen neo neu nla nlb nle nll nln nlo nlu nna nnb nne nnl nnn nno nnu no- noa nob noe nol non noo nou nua nub nue nul nun nuo nuu oaa oab oae oal oan oao oau ob- oba obb obe obl obn obo obu oea oeb oee oel oen oeo ola olb ole oll oln olo olu on- ona onb one onl onn ono onu oo- ooa oob ool oon ooo ou- oua oue oul oun ouo ua- uaa uab uae ual uan uao uau uba ubb ube ubl ubn ubo ubu uea ueb uee uel uen ula ulb ule ull uln ulo ulu un- una unb une unl unn uno unu uoa uob uoe uol uon uoo uua uue uun uuu