-al a-a a-b aaa aab aae aak aal aan aau ab- aba abb abe abk abl abn abu aea aeb aee aek ael aen aeu aka akb ake akk akl akn aku al- ala alb ale alk all aln alu an- ana anb ane ank anl ann anu au- aua aub aue auk aul aun b-u baa bab bae bak bal ban bau bba bbb bbe bbk bbl bbn bbu be- bea beb bee bek bel ben beu bka bkb bke bkk bkl bkn bla blb ble blk bll bln blu bna bnb bne bnk bnl bnn bnu bua bub bue buk bul bun buu eaa eab eae eak eal ean eau eba ebb ebe ebk ebl ebn ebu eea eeb eee eek eel een eka ekb eke ekl eku ela elb ele elk ell eln elu en- ena enb ene enk enl enn enu eu- eua eub eue eul eun ka- kaa kab kae kak kal kan kau kba kbb kbe kbk kbl kbn kbu ke- kea keb kee kek kel ken kkb kke kkk kkl kkn kku kl- kla klb klu kn- kna kne knk knl knn knu kub kue kuk kul kun kuu la- laa lab lae lak lal lan lau lba lbb lbe lbk lbl lbu lea leb lee lek lel len leu lka lkb lkl lla llb lle llk lll lln llu lna lnb lne lnk lnl lnn lnu lua lub lue luk lul lun luu naa nab nae nak nal nan nau nba nbb nbe nbk nbl nbn nbu ne- nea neb nee nek nel nen neu nka nke nkk nkn nku nla nlb nle nlk nll nln nlu nna nnb nne nnk nnl nnn nnu nua nub nue nuk nul nun nuu ua- uaa uab uae uak ual uan uau uba ubb ube ubk ubl ubn ubu uea ueb uee uel uen uka ukb uke ukk ukl ukn uku ula ulb ule ulk ull uln ulu un- una unb une unk unl unn unu uua uue uun uuu