-al -ol a-a a-b a-c aaa aab aac aae aal aam aao aap ab- aba abb abc abe abl abm abo abp ac- aca acb acc ace acl acm aco acp aea aeb aec aee ael aem aeo aep al- ala alb alc ale all alm alo alp ama amb amc ame aml amm amo amp aoa aob aoc aoe aol aom aoo aop ap- apa apb apc ape apl apm apo app b-p baa bab bac bae bal bam bao bap bba bbb bbc bbe bbl bbm bbo bbp bca bcb bcc bce bcl bcm bco bcp be- bea beb bec bee bel bem beo bep bla blb blc ble bll blm blo blp bma bmb bmc bme bml bmm bmo bmp boa bob boc boe bol bom boo bop bpa bpb bpc bpe bpl bpm bpo bpp c-- caa cab cac cae cal cam cao cap cba cbb cbc cbe cbl cbm cbo cbp cca ccb ccc cce ccl ccm cco ccp ce- cea ceb cec cee cel cem ceo cep cl- cla clb clc cle cll clm clo clp cma cmb cmc cme cml cmm cmo cmp co- coa cob coc coe col com coo cop cpa cpb cpc cpe cpl cpm cpo cpp eaa eab eac eae eal eam eao eap eba ebb ebc ebe ebl ebm ebo ebp ec- eca ecb ecc ece ecl ecm eco eea eeb eec eee eel eem eeo eep ela elb elc ele ell elm elo elp em- ema emb emc eme eml emm emo emp eo- eoa eob eoc eoe eol eom eoo eop ep- epa epb epc epe epl epm epo epp l-p la- laa lab lac lae lal lam lao lap lba lbb lbc lbe lbl lbm lbo lbp lca lcb lcc lce lcl lcm lco lcp lea leb lec lee lel lem leo lep lla llb llc lle lll llm llo llp lma lmb lmc lme lml lmm lmo lmp loa lob loc loe lol lom loo lop lpa lpb lpc lpe lpl lpm lpo lpp m-o maa mab mac mae mal mam mao map mba mbb mbc mbe mbl mbm mbo mbp mc- mca mcb mcc mce mcl mcm mco mcp mea meb mec mee mel mem meo mep mla mlb mlc mle mll mlm mlo mlp mma mmb mmc mme mml mmm mmo mmp moa mob moc moe mol mom moo mop mpa mpb mpc mpe mpl mpm mpo mpp oaa oab oac oae oal oam oao oap ob- oba obb obc obe obl obm obo obp oc- oca ocb occ ocl ocm oco ocp oea oeb oec oee oel oem oeo oep ola olb olc ole oll olm olo olp om- oma omb omc ome oml omm omo omp oo- ooa oob ooc ool oom ooo oop op- opa opb opc ope opl opm opo opp p-p paa pab pac pae pal pam pao pap pba pbb pbc pbe pbl pbm pbo pbp pca pcb pcc pce pcl pcm pco pcp pea peb pec pee pel pem peo pep pla plb plc ple pll plm plo plp pma pmb pmc pme pml pmm pmo pmp poa pob poc poe pol pom poo pop ppa ppb ppc ppe ppl ppm ppo ppp