-al -ol a-a a-b aaa aab aah aak aal aao aas ab- aba abb abh abk abl abo abs aha ahb ahh ahk ahl aho ahs aka akb akh akk akl ako aks al- ala alb alh alk all alo als aoa aob aoh aok aol aoo aos as- asa asb ash ask asl aso ass baa bab bah bak bal bao bas bba bbb bbh bbk bbl bbo bbs bha bhb bhh bhk bhl bho bhs bka bkb bkk bkl bko bks bla blb blh blk bll blo bls boa bob boh bok bol boo bos bsa bsb bsh bsk bsl bso bss haa hab hah hak hal hao has hba hbb hbh hbk hbl hbo hbs hha hhb hhh hhk hhl hho hhs hka hkb hkh hkk hkl hko hks hla hlb hlh hll hlo hls hoa hob hoh hok hol hoo hos hsa hsb hsh hsk hsl hss ka- kaa kab kah kak kal kao kas kba kbb kbh kbk kbl kbo kbs kha khh khk kho khs kkb kkh kkk kkl kks kl- kla klb klh klo kls koa kob koh kok kol koo kos ksa ksb ksh ksk ksl kso kss la- laa lab lah lak lal lao las lba lbb lbh lbk lbl lbo lbs lha lhb lhh lhk lho lhs lka lkb lkh lkl lks lla llb llk lll llo lls loa lob loh lok lol loo los lsa lsb lsh lsk lsl lso lss oaa oab oah oak oal oao oas ob- oba obb obh obk obl obo obs oha ohh ohl oho ohs oka okb okk okl oko oks ola olb olk oll olo ols oo- ooa oob ooh ook ool ooo oos os- osa osb osh osk osl oso oss saa sab sah sak sal sao sas sba sbb sbh sbk sbl sbo sbs sh- sha shb shh shk shl sho shs sk- ska skb skh skk skl sko sks sla slb slh slk sll slo sls soa sob soh sok sol soo sos ss- ssa ssb ssh ssk ssl sso sss