-al a-a a-b aaa aab aae aaf aak aal aau ab- aba abb abe abf abk abl abu aea aeb aee aef aek ael aeu af- afa afb afe aff afk afl afu aka akb ake akk akl aku al- ala alb ale alf alk all alu au- aua aub aue auf auk aul b-u baa bab bae baf bak bal bau bba bbb bbe bbf bbk bbl bbu be- bea beb bee bef bek bel beu bfa bfb bfe bff bfl bfu bka bkb bke bkf bkk bkl bla blb ble blf blk bll blu bua bub bue buf buk bul buu eaa eab eae eaf eak eal eau eba ebb ebe ebf ebk ebl ebu eea eeb eee eef eek eel ef- efa efb efe eff efl eka ekb eke ekf ekl eku ela elb ele elf elk ell elu eu- eua eub eue euf eul faa fab fae faf fak fal fau fba fbb fbe fbf fbk fbl fbu fea feb fee fef fek fel feu ffa ffe fff ffk ffl ffu fka fkb fkf fkk fkl fla flb fle flf fll flu fua fub fue fuf fuk ful fuu ka- kaa kab kae kaf kak kal kau kba kbb kbe kbf kbk kbl kbu ke- kea keb kee kef kek kel kfa kff kfu kkb kke kkk kkl kku kl- kla klb klf klu kub kue kuk kul kuu la- laa lab lae laf lak lal lau lba lbb lbe lbf lbk lbl lbu lea leb lee lef lek lel leu lfa lfb lfe lff lfk lfl lfu lka lkb lkl lla llb lle llf llk lll llu lua lub lue luf luk lul luu ua- uaa uab uae uaf uak ual uau uba ubb ube ubf ubk ubl ubu uea ueb uee uef uel ufa ufe uff ufl ufu uka ukb uke ukf ukk ukl uku ula ulb ule ulf ulk ull ulu uua uue uuu