-al -ol a-a a-b aaa aab aah aal aao aas ab- aba abb abh abl abo abs aha ahb ahh ahl aho ahs al- ala alb alh all alo als aoa aob aoh aol aoo aos as- asa asb ash asl aso ass baa bab bah bal bao bas bba bbb bbh bbl bbo bbs bha bhb bhh bhl bho bhs bla blb blh bll blo bls boa bob boh bol boo bos bsa bsb bsh bsl bso bss haa hab hah hal hao has hba hbb hbh hbl hbo hbs hha hhb hhh hhl hho hhs hla hlb hlh hll hlo hls hoa hob hoh hol hoo hos hsa hsb hsh hsl hss la- laa lab lah lal lao las lba lbb lbh lbl lbo lbs lha lhb lhh lho lhs lla llb lll llo lls loa lob loh lol loo los lsa lsb lsh lsl lso lss oaa oab oah oal oao oas ob- oba obb obh obl obo obs oha ohh ohl oho ohs ola olb oll olo ols oo- ooa oob ooh ool ooo oos os- osa osb osh osl oso oss saa sab sah sal sao sas sba sbb sbh sbl sbo sbs sh- sha shb shh shl sho shs sla slb slh sll slo sls soa sob soh sol soo sos ss- ssa ssb ssh ssl sso sss