-al -er -ol a-a a-b aaa aab aae aal aam aao aap aar ab- aba abb abe abl abm abo abp abr aea aeb aee ael aem aeo aep aer al- ala alb ale all alm alo alp alr ama amb ame aml amm amo amp amr aoa aob aoe aol aom aoo aop aor ap- apa apb ape apl apm apo app apr ar- ara arb are arl arm aro arp arr b-p baa bab bae bal bam bao bap bar bba bbb bbe bbl bbm bbo bbp bbr be- bea beb bee bel bem beo bep ber bla blb ble bll blm blo blp blr bma bmb bme bml bmm bmo bmp bmr boa bob boe bol bom boo bop bor bpa bpb bpe bpl bpm bpo bpp bpr bra brb bre brl brm bro brp brr eaa eab eae eal eam eao eap ear eba ebb ebe ebl ebm ebo ebp ebr eea eeb eee eel eem eeo eep eer ela elb ele ell elm elo elp elr em- ema emb eme eml emm emo emp emr eo- eoa eob eoe eol eom eoo eop eor ep- epa epb epe epl epm epo epp epr era erb ere erl erm ero erp err l-p la- laa lab lae lal lam lao lap lar lba lbb lbe lbl lbm lbo lbp lbr lea leb lee lel lem leo lep ler lla llb lle lll llm llo llp llr lma lmb lme lml lmm lmo lmp lmr loa lob loe lol lom loo lop lor lpa lpb lpe lpl lpm lpo lpp lpr lra lrb lrm lro lrp lrr m-o m-r maa mab mae mal mam mao map mar mba mbb mbe mbl mbm mbo mbp mbr mea meb mee mel mem meo mep mer mla mlb mle mll mlm mlo mlp mlr mma mmb mme mml mmm mmo mmp mmr moa mob moe mol mom moo mop mor mpa mpb mpe mpl mpm mpo mpp mpr mra mrb mre mrl mrm mro mrp mrr oaa oab oae oal oam oao oap oar ob- oba obb obe obl obm obo obp obr oea oeb oee oel oem oeo oep oer ola olb ole oll olm olo olp om- oma omb ome oml omm omo omp omr oo- ooa oob ool oom ooo oop oor op- opa opb ope opl opm opo opp opr or- ora orb ore orl orm oro orp orr p-p paa pab pae pal pam pao pap par pba pbb pbe pbl pbm pbo pbp pbr pea peb pee pel pem peo pep per pla plb ple pll plm plo plp plr pma pmb pme pml pmm pmo pmp pmr poa pob poe pol pom poo pop por ppa ppb ppe ppl ppm ppo ppp ppr pra prb pre prl prm pro prp prr ra- raa rab rae ral ram rao rap rar rba rbb rbe rbl rbm rbo rbp rbr re- rea reb ree rel rem reo rep rer rla rle rll rlm rlo rlp rlr rma rmb rme rml rmm rmo rmp rmr roa rob roe rol rom roo rop ror rpa rpb rpe rpl rpm rpo rpp rpr rra rrb rrl rrm rrp rrr