-al a-a a-b a-i aaa aab aad aai aak aal aas ab- aba abb abd abi abk abl abs ad- ada adb add adi adk adl ads ai- aia aib aid aii aik ail ais aka akb akd aki akk akl aks al- ala alb ald ali alk all als as- asa asb asd asi ask asl ass baa bab bad bai bak bal bas bba bbb bbd bbi bbk bbl bbs bda bdb bdd bdi bdk bdl bds bi- bia bib bid bii bik bil bis bka bkb bkk bkl bks bla blb bld bli blk bll bls bsa bsb bsd bsi bsk bsl bss daa dab dad dai dak dal das dba dbb dbd dbi dbk dbl dbs dda ddb ddd ddi ddk ddl dds di- dia dib did dii dik dil dis dka dkb dki dkk dkl dks dl- dla dlb dld dli dlk dll dls dsa dsb dsd dsi dsk dsl dss i-d ia- iaa iab iad iai ial ias iba ibb ibd ibi ibk ibl ibs ida idb idd idi idk idl ids iia iib iid iii iil iis ika ikb iki ikk ikl iks il- ila ilb ild ili ilk ill ils is- isa isb isd isi isk isl iss ka- kaa kab kad kai kak kal kas kba kbb kbd kbi kbk kbl kbs kda kdb kdk kdl kds kia kib kid kii kik kil kis kkb kki kkk kkl kks kl- kla klb kld kli kls ksa ksb ksd ksi ksk ksl kss la- laa lab lad lai lak lal las lba lbb lbd lbi lbk lbl lbs lda ldb ldd ldi ldk ldl lds lia lib lid lii lik lil lis lka lkb lkl lks lla llb lld lli llk lll lls lsa lsb lsd lsi lsk lsl lss saa sab sad sai sak sal sas sba sbb sbd sbi sbk sbl sbs sda sdb sdd sdi sdk sdl sds sia sib sid sii sik sil sis sk- ska skb skd ski skk skl sks sla slb sld sli slk sll sls ss- ssa ssb ssd ssi ssk ssl sss