-al a-a a-b aaa aab aae aak aal aan aau aav ab- aba abb abe abk abl abn abu abv aea aeb aee aek ael aen aeu aev aka akb ake akk akl akn aku akv al- ala alb ale alk all aln alu alv an- ana anb ane ank anl ann anu anv au- aua aub aue auk aul aun auv av- ava avb ave avk avl avn avu b-u baa bab bae bak bal ban bau bav bba bbb bbe bbk bbl bbn bbu be- bea beb bee bek bel ben beu bev bka bkb bke bkk bkl bkn bkv bla blb ble blk bll bln blu blv bna bnb bne bnk bnl bnn bnu bnv bua bub bue buk bul bun buu bva bvb bve bvk bvl bvn bvu bvv eaa eab eae eak eal ean eau eav eba ebb ebe ebk ebl ebn ebu ebv eea eeb eee eek eel een eev eka ekb eke ekl eku ekv ela elb ele elk ell eln elu elv en- ena enb ene enk enl enn enu env eu- eua eub eue eul eun euv eva evb eve evl evn evv ka- kaa kab kae kak kal kan kau kav kba kbb kbe kbk kbl kbn kbu ke- kea keb kee kek kel ken kev kkb kke kkk kkl kkn kku kkv kl- kla klb klu klv kn- kna kne knk knl knn knu kub kue kuk kul kun kuu kva kvb kvk kvn kvv la- laa lab lae lak lal lan lau lav lba lbb lbe lbk lbl lbu lbv lea leb lee lek lel len leu lev lka lkb lkl lla llb lle llk lll lln llu llv lna lnb lne lnk lnl lnn lnu lua lub lue luk lul lun luu luv lva lvb lve lvl lvn lvv naa nab nae nak nal nan nau nav nba nbb nbe nbk nbl nbn nbu nbv ne- nea neb nee nek nel nen neu nev nka nke nkk nkn nku nla nlb nle nlk nll nln nlu nlv nna nnb nne nnk nnl nnn nnu nnv nua nub nue nuk nul nun nuu nuv nva nvb nve nvk nvl nvn nvu nvv ua- uaa uab uae uak ual uan uau uav uba ubb ube ubk ubl ubn ubu ubv uea ueb uee uel uen uka ukb uke ukk ukl ukn uku ula ulb ule ulk ull uln ulu ulv un- una unb une unk unl unn unu unv uua uue uun uuu uva uvb uve uvl uvu uvv v-a v-e vaa vab vae vak val van vau vav vba vbk vbl vbv vea veb vee vek vel ven veu vka vkb vl- vla vlb vle vlk vll vlv vn- vna vnl vnu vnv vue vuk vul vuv vva vvb vvv