-al -ol a-a a-b aaa aab aad aal aam aao aar aas ab- aba abb abd abl abm abo abr abs ad- ada adb add adl adm ado adr ads al- ala alb ald all alm alo alr als ama amb amd aml amm amo amr ams aoa aob aod aol aom aoo aor aos ar- ara arb ard arl arm aro arr ars as- asa asb asd asl asm aso asr ass baa bab bad bal bam bao bar bas bba bbb bbd bbl bbm bbo bbr bbs bda bdb bdd bdl bdm bdo bdr bds bla blb bld bll blm blo blr bls bma bmb bmd bml bmm bmo bmr bms boa bob bod bol bom boo bor bos bra brb brd brl brm bro brr brs bsa bsb bsd bsl bsm bso bsr bss daa dab dad dal dam dao dar das dba dbb dbd dbl dbm dbo dbr dbs dda ddb ddd ddl ddm ddo ddr dds dl- dla dlb dld dll dlm dlo dlr dls dma dmb dmd dml dmm dmo dmr dms doa dob dod dol dom doo dor dos dra drb drd drl drm dro drr drs dsa dsb dsd dsl dsm dso dsr dss la- laa lab lad lal lam lao lar las lba lbb lbd lbl lbm lbo lbr lbs lda ldb ldd ldl ldm ldo ldr lds lla llb lld lll llm llo llr lls lma lmb lmd lml lmm lmo lmr lms loa lob lod lol lom loo lor los lra lrb lrd lrm lro lrr lrs lsa lsb lsd lsl lsm lso lsr lss m-o m-r maa mab mad mal mam mao mar mas mba mbb mbd mbl mbm mbo mbr mbs mda mdb mdd mdl mdm mdo mdr mds mla mlb mld mll mlm mlo mlr mls mma mmb mmd mml mmm mmo mmr mms moa mob mod mol mom moo mor mos mra mrb mrd mrl mrm mro mrr mrs msa msb msd msl msm mso msr mss oaa oab oad oal oam oao oar oas ob- oba obb obd obl obm obo obr obs oda odb odd odl odm odo odr ods ola olb old oll olm olo ols om- oma omb omd oml omm omo omr oms oo- ooa oob ood ool oom ooo oor oos or- ora orb ord orl orm oro orr ors os- osa osb osd osl osm oso osr oss ra- raa rab rad ral ram rao rar ras rba rbb rbd rbl rbm rbo rbr rbs rda rdb rdd rdl rdm rdo rdr rds rla rld rll rlm rlo rlr rls rma rmb rmd rml rmm rmo rmr rms roa rob rod rol rom roo ror ros rra rrb rrd rrl rrm rrr rrs rsa rsb rsd rsl rsm rso rsr rss saa sab sad sal sam sao sar sas sba sbb sbd sbl sbm sbo sbr sbs sda sdb sdd sdl sdm sdo sdr sds sla slb sld sll slm slo slr sls sma smb smd sml smm smo smr sms soa sob sod sol som soo sor sos sr- sra srb srd srl srm sro srr srs ss- ssa ssb ssd ssl ssm sso ssr sss