-al a-a a-b aaa aab aae aak aal aas aau ab- aba abb abe abk abl abs abu aea aeb aee aek ael aes aeu aka akb ake akk akl aks aku al- ala alb ale alk all als alu as- asa asb ase ask asl ass asu au- aua aub aue auk aul aus b-u baa bab bae bak bal bas bau bba bbb bbe bbk bbl bbs bbu be- bea beb bee bek bel bes beu bka bkb bke bkk bkl bks bla blb ble blk bll bls blu bsa bsb bse bsk bsl bss bsu bua bub bue buk bul bus buu eaa eab eae eak eal eas eau eba ebb ebe ebk ebl ebs ebu eea eeb eee eek eel ees eka ekb eke ekl eks eku ela elb ele elk ell els elu es- esa esb ese esk esl ess esu eu- eua eub eue eul eus ka- kaa kab kae kak kal kas kau kba kbb kbe kbk kbl kbs kbu ke- kea keb kee kek kel kes kkb kke kkk kkl kks kku kl- kla klb kls klu ksa ksb kse ksk ksl kss ksu kub kue kuk kul kus kuu la- laa lab lae lak lal las lau lba lbb lbe lbk lbl lbs lbu lea leb lee lek lel les leu lka lkb lkl lks lla llb lle llk lll lls llu lsa lsb lse lsk lsl lss lsu lua lub lue luk lul lus luu saa sab sae sak sal sas sau sba sbb sbe sbk sbl sbs sbu se- sea seb see sek sel ses seu sk- ska skb ske skk skl sks sku sla slb sle slk sll sls slu ss- ssa ssb sse ssk ssl sss ssu sua sub sue suk sul sus suu ua- uaa uab uae uak ual uas uau uba ubb ube ubk ubl ubs ubu uea ueb uee uel ues uka ukb uke ukk ukl uku ula ulb ule ulk ull uls ulu usa usb use usk usl uss usu uua uue uus uuu