-al -ol a-a a-b aaa aab aad aah aal aao aar aas ab- aba abb abd abh abl abo abr abs ad- ada adb add adh adl ado adr ads aha ahb ahd ahh ahl aho ahr ahs al- ala alb ald alh all alo alr als aoa aob aod aoh aol aoo aor aos ar- ara arb ard arh arl aro arr ars as- asa asb asd ash asl aso asr ass baa bab bad bah bal bao bar bas bba bbb bbd bbh bbl bbo bbr bbs bda bdb bdd bdh bdl bdo bdr bds bha bhb bhd bhh bhl bho bhr bhs bla blb bld blh bll blo blr bls boa bob bod boh bol boo bor bos bra brb brd brh brl bro brr brs bsa bsb bsd bsh bsl bso bsr bss daa dab dad dah dal dao dar das dba dbb dbd dbh dbl dbo dbr dbs dda ddb ddd ddh ddl ddo ddr dds dh- dha dhb dhd dhh dhl dho dhr dhs dl- dla dlb dld dlh dll dlo dlr dls doa dob dod doh dol doo dor dos dra drb drd drl dro drr drs dsa dsb dsd dsh dsl dso dsr dss haa hab had hah hal hao har has hba hbb hbd hbh hbl hbo hbr hbs hda hdb hdd hdh hdl hdo hdr hds hha hhb hhd hhh hhl hho hhr hhs hla hlb hld hlh hll hlo hlr hls hoa hob hod hoh hol hoo hor hos hr- hra hrb hrd hrh hrl hro hrr hrs hsa hsb hsd hsh hsl hsr hss la- laa lab lad lah lal lao lar las lba lbb lbd lbh lbl lbo lbr lbs lda ldb ldd ldh ldl ldo ldr lds lha lhb lhd lhh lho lhr lhs lla llb lld lll llo llr lls loa lob lod loh lol loo lor los lra lrb lrd lrh lro lrr lrs lsa lsb lsd lsh lsl lso lsr lss oaa oab oad oah oal oao oar oas ob- oba obb obd obh obl obo obr obs oda odb odd odh odl odo odr ods oha ohd ohh ohl oho ohr ohs ola olb old oll olo ols oo- ooa oob ood ooh ool ooo oor oos or- ora orb ord orh orl oro orr ors os- osa osb osd osh osl oso osr oss ra- raa rab rad rah ral rao rar ras rba rbb rbd rbh rbl rbo rbr rbs rda rdb rdd rdh rdl rdo rdr rds rh- rha rhb rhd rhh rhl rho rhr rhs rla rld rlh rll rlo rlr rls roa rob rod roh rol roo ror ros rra rrb rrd rrh rrl rrr rrs rsa rsb rsd rsh rsl rso rsr rss saa sab sad sah sal sao sar sas sba sbb sbd sbh sbl sbo sbr sbs sda sdb sdd sdh sdl sdo sdr sds sh- sha shb shd shh shl sho shr shs sla slb sld slh sll slo slr sls soa sob sod soh sol soo sor sos sr- sra srb srd srh srl sro srr srs ss- ssa ssb ssd ssh ssl sso ssr sss