-al -ol a-a a-b a-c aaa aab aac aae aag aal aao aap aas ab- aba abb abc abe abg abl abo abp abs ac- aca acb acc ace acg acl aco acp acs aea aeb aec aee aeg ael aeo aep aes ag- aga agb agc age agg agl ago agp ags al- ala alb alc ale alg all alo alp als aoa aob aoc aoe aog aol aoo aop aos ap- apa apb apc ape apg apl apo app aps as- asa asb asc ase asg asl aso asp ass b-p baa bab bac bae bag bal bao bap bas bba bbb bbc bbe bbg bbl bbo bbp bbs bca bcb bcc bce bcg bcl bco bcp bcs be- bea beb bec bee beg bel beo bep bes bga bgb bgc bge bgg bgl bgo bgp bgs bla blb blc ble blg bll blo blp bls boa bob boc boe bog bol boo bop bos bpa bpb bpc bpe bpg bpl bpo bpp bps bsa bsb bsc bse bsg bsl bso bsp bss c-- caa cab cac cae cag cal cao cap cas cba cbb cbc cbe cbg cbl cbo cbp cbs cca ccb ccc cce ccg ccl cco ccp ccs ce- cea ceb cec cee ceg cel ceo cep ces cga cgb cgc cge cgg cgl cgo cgp cgs cl- cla clb clc cle clg cll clo clp cls co- coa cob coc coe cog col coo cop cos cpa cpb cpc cpe cpg cpl cpo cpp cps csa csb csc cse csg csl cso csp css eaa eab eac eae eag eal eao eap eas eba ebb ebc ebe ebg ebl ebo ebp ebs ec- eca ecb ecc ece ecg ecl eco ecs eea eeb eec eee eeg eel eeo eep ees ega egb egc ege egg egl ego egp egs ela elb elc ele elg ell elo elp els eo- eoa eob eoc eoe eog eol eoo eop eos ep- epa epb epc epe epg epl epo epp eps es- esa esb esc ese esg esl eso esp ess g-p gaa gab gac gae gag gal gao gap gas gba gbc gbe gbg gbl gbo gbp gbs gca gcb gcc gce gcg gcl gco gcp gcs ge- gea geb gec gee geg gel geo gep ges gga ggb ggc ggg ggo ggp ggs gla glb glc gle glg gll glo glp gls goa gob goc goe gog gol goo gop gos gpa gpb gpc gpe gpg gpl gpo gpp gps gsa gsb gsc gse gsg gsl gso gsp gss l-p la- laa lab lac lae lag lal lao lap las lba lbb lbc lbe lbg lbl lbo lbp lbs lca lcb lcc lce lcg lcl lco lcp lcs lea leb lec lee leg lel leo lep les lga lgb lgc lge lgg lgl lgo lgp lgs lla llb llc lle llg lll llo llp lls loa lob loc loe log lol loo lop los lpa lpb lpc lpe lpg lpl lpo lpp lps lsa lsb lsc lse lsg lsl lso lsp lss oaa oab oac oae oag oal oao oap oas ob- oba obb obc obe obg obl obo obp obs oc- oca ocb occ ocg ocl oco ocp ocs oea oeb oec oee oeg oel oeo oep oes oga ogc oge ogg ogl ogo ogp ogs ola olb olc ole olg oll olo olp ols oo- ooa oob ooc oog ool ooo oop oos op- opa opb opc ope opg opl opo opp ops os- osa osb osc ose osg osl oso osp oss p-p paa pab pac pae pag pal pao pap pas pba pbb pbc pbe pbg pbl pbo pbp pbs pca pcb pcc pce pcg pcl pco pcp pcs pea peb pec pee peg pel peo pep pes pga pgb pgc pge pgg pgl pgo pgp pgs pla plb plc ple plg pll plo plp pls poa pob poc poe pog pol poo pop pos ppa ppb ppc ppe ppg ppl ppo ppp pps ps- psa psb psc pse psg psl pso psp pss saa sab sac sae sag sal sao sap sas sba sbb sbc sbe sbg sbl sbo sbp sbs sca scb scc sce scg scl sco scp scs se- sea seb sec see seg sel seo sep ses sga sgb sgc sge sgg sgl sgo sgp sgs sla slb slc sle slg sll slo slp sls soa sob soc soe sog sol soo sop sos spa spb spc spe spg spl spo spp sps ss- ssa ssb ssc sse ssg ssl sso ssp sss