-al -ol a-a a-b aaa aab aad aal aam aao aap aar aas ab- aba abb abd abl abm abo abp abr abs ad- ada adb add adl adm ado adp adr ads al- ala alb ald all alm alo alp alr als ama amb amd aml amm amo amp amr ams aoa aob aod aol aom aoo aop aor aos ap- apa apb apd apl apm apo app apr aps ar- ara arb ard arl arm aro arp arr ars as- asa asb asd asl asm aso asp asr ass b-p baa bab bad bal bam bao bap bar bas bba bbb bbd bbl bbm bbo bbp bbr bbs bda bdb bdd bdl bdm bdo bdp bdr bds bla blb bld bll blm blo blp blr bls bma bmb bmd bml bmm bmo bmp bmr bms boa bob bod bol bom boo bop bor bos bpa bpb bpd bpl bpm bpo bpp bpr bps bra brb brd brl brm bro brp brr brs bsa bsb bsd bsl bsm bso bsp bsr bss daa dab dad dal dam dao dap dar das dba dbb dbd dbl dbm dbo dbp dbr dbs dda ddb ddd ddl ddm ddo ddp ddr dds dl- dla dlb dld dll dlm dlo dlp dlr dls dma dmb dmd dml dmm dmo dmp dmr dms doa dob dod dol dom doo dop dor dos dpa dpb dpd dpl dpm dpo dpp dpr dps dra drb drd drl drm dro drp drr drs dsa dsb dsd dsl dsm dso dsp dsr dss l-p la- laa lab lad lal lam lao lap lar las lba lbb lbd lbl lbm lbo lbp lbr lbs lda ldb ldd ldl ldm ldo ldp ldr lds lla llb lld lll llm llo llp llr lls lma lmb lmd lml lmm lmo lmp lmr lms loa lob lod lol lom loo lop lor los lpa lpb lpd lpl lpm lpo lpp lpr lps lra lrb lrd lrm lro lrp lrr lrs lsa lsb lsd lsl lsm lso lsp lsr lss m-o m-r maa mab mad mal mam mao map mar mas mba mbb mbd mbl mbm mbo mbp mbr mbs mda mdb mdd mdl mdm mdo mdp mdr mds mla mlb mld mll mlm mlo mlp mlr mls mma mmb mmd mml mmm mmo mmp mmr mms moa mob mod mol mom moo mop mor mos mpa mpb mpd mpl mpm mpo mpp mpr mps mra mrb mrd mrl mrm mro mrp mrr mrs msa msb msd msl msm mso msp msr mss oaa oab oad oal oam oao oap oar oas ob- oba obb obd obl obm obo obp obr obs oda odb odd odl odm odo odp odr ods ola olb old oll olm olo olp ols om- oma omb omd oml omm omo omp omr oms oo- ooa oob ood ool oom ooo oop oor oos op- opa opb opd opl opm opo opp opr ops or- ora orb ord orl orm oro orp orr ors os- osa osb osd osl osm oso osp osr oss p-p paa pab pad pal pam pao pap par pas pba pbb pbd pbl pbm pbo pbp pbr pbs pda pdb pdd pdl pdm pdo pdp pdr pds pla plb pld pll plm plo plp plr pls pma pmb pmd pml pmm pmo pmp pmr pms poa pob pod pol pom poo pop por pos ppa ppb ppd ppl ppm ppo ppp ppr pps pra prb prd prl prm pro prp prr prs ps- psa psb psd psl psm pso psp psr pss ra- raa rab rad ral ram rao rap rar ras rba rbb rbd rbl rbm rbo rbp rbr rbs rda rdb rdd rdl rdm rdo rdp rdr rds rla rld rll rlm rlo rlp rlr rls rma rmb rmd rml rmm rmo rmp rmr rms roa rob rod rol rom roo rop ror ros rpa rpb rpd rpl rpm rpo rpp rpr rps rra rrb rrd rrl rrm rrp rrr rrs rsa rsb rsd rsl rsm rso rsp rsr rss saa sab sad sal sam sao sap sar sas sba sbb sbd sbl sbm sbo sbp sbr sbs sda sdb sdd sdl sdm sdo sdp sdr sds sla slb sld sll slm slo slp slr sls sma smb smd sml smm smo smp smr sms soa sob sod sol som soo sop sor sos spa spb spd spl spm spo spp spr sps sr- sra srb srd srl srm sro srp srr srs ss- ssa ssb ssd ssl ssm sso ssp ssr sss