-al a-a a-b a-c aaa aab aac aae aah aak aal aan aau ab- aba abb abc abe abh abk abl abn abu ac- aca acb acc ace ach ack acl acn acu aea aeb aec aee aeh aek ael aen aeu aha ahb ahc ahe ahh ahk ahl ahn ahu aka akb akc ake akh akk akl akn aku al- ala alb alc ale alh alk all aln alu an- ana anb anc ane anh ank anl ann anu au- aua aub auc aue auh auk aul aun b-u baa bab bac bae bah bak bal ban bau bba bbb bbc bbe bbh bbk bbl bbn bbu bca bcb bcc bce bch bck bcl bcn bcu be- bea beb bec bee beh bek bel ben beu bha bhb bhc bhe bhh bhk bhl bhu bka bkb bkc bke bkk bkl bkn bla blb blc ble blh blk bll bln blu bna bnb bnc bne bnk bnl bnn bnu bua bub buc bue buh buk bul bun buu c-- caa cab cac cae cah cak cal can cau cba cbb cbc cbe cbh cbk cbl cbn cbu cca ccb ccc cce cch cck ccl ccn ccu ce- cea ceb cec cee ceh cek cel cen ceu ch- cha chb chc che chh chk chl chn chu cka ckb ckc ckh cl- cla clb clc cle clh clk cll cln clu cn- cna cnb cnc cne cnh cnl cnn cnu cua cub cuc cue cuh cuk cul cun cuu eaa eab eac eae eah eak eal ean eau eba ebb ebc ebe ebh ebk ebl ebn ebu ec- eca ecb ecc ece ech eck ecl ecn ecu eea eeb eec eee eek eel een eha ehb ehc ehe ehh ehl ehn ehu eka ekb ekc eke ekh ekl eku ela elb elc ele elh elk ell eln elu en- ena enb enc ene enh enk enl enn enu eu- eua eub euc eue eul eun haa hab hac hae hah hak hal han hau hba hbb hbc hbe hbh hbk hbl hbn hbu hca hcb hcc hce hch hck hcl hcn he- hea heb hec hee heh hek hel hen heu hha hhb hhc hhe hhh hhk hhl hhn hhu hka hkb hkh hkk hkl hkn hku hla hlb hlc hle hlh hll hln hlu hna hnb hnc hne hnh hnk hnl hnn hnu hua hub huc hue huh huk hul hun huu ka- kaa kab kac kae kah kak kal kan kau kba kbb kbc kbe kbh kbk kbl kbn kbu kca kcb kcc kce kch kck kcl kcn kcu ke- kea keb kec kee keh kek kel ken kha khe khh khk khn khu kkb kkc kke kkh kkk kkl kkn kku kl- kla klb klc klh klu kn- kna knc kne knk knl knn knu kub kuc kue kuh kuk kul kun kuu la- laa lab lac lae lah lak lal lan lau lba lbb lbc lbe lbh lbk lbl lbu lca lcb lcc lce lch lck lcl lcn lcu lea leb lec lee leh lek lel len leu lha lhb lhc lhh lhk lhu lka lkb lkh lkl lla llb llc lle llk lll lln llu lna lnb lnc lne lnh lnk lnl lnn lnu lua lub luc lue luh luk lul lun luu naa nab nac nae nah nak nal nan nau nba nbb nbc nbe nbk nbl nbn nbu nca ncb ncc nce nch nck ncl ncn ncu ne- nea neb nec nee neh nek nel nen neu nha nhb nhc nhe nhh nhk nhl nhn nhu nka nkc nke nkk nkn nku nla nlb nlc nle nlh nlk nll nln nlu nna nnb nnc nne nnh nnk nnl nnn nnu nua nub nuc nue nuh nuk nul nun nuu ua- uaa uab uac uae uah uak ual uan uau uba ubb ubc ube ubh ubk ubl ubn ubu uca ucb ucc uce uch uck ucl ucn ucu uea ueb uec uee ueh uel uen uha uhb uhc uhe uhh uhl uhu uka ukb ukc uke ukk ukl ukn uku ula ulb ulc ule ulk ull uln ulu un- una unb unc une unh unk unl unn unu uua uuc uue uun uuu