-al -er -ol a-a a-b aaa aab aae aag aal aao aap aar aas ab- aba abb abe abg abl abo abp abr abs aea aeb aee aeg ael aeo aep aer aes ag- aga agb age agg agl ago agp agr ags al- ala alb ale alg all alo alp alr als aoa aob aoe aog aol aoo aop aor aos ap- apa apb ape apg apl apo app apr aps ar- ara arb are arg arl aro arp arr ars as- asa asb ase asg asl aso asp asr ass b-p baa bab bae bag bal bao bap bar bas bba bbb bbe bbg bbl bbo bbp bbr bbs be- bea beb bee beg bel beo bep ber bes bga bgb bge bgg bgl bgo bgp bgr bgs bla blb ble blg bll blo blp blr bls boa bob boe bog bol boo bop bor bos bpa bpb bpe bpg bpl bpo bpp bpr bps bra brb bre brg brl bro brp brr brs bsa bsb bse bsg bsl bso bsp bsr bss eaa eab eae eag eal eao eap ear eas eba ebb ebe ebg ebl ebo ebp ebr ebs eea eeb eee eeg eel eeo eep eer ees ega egb ege egg egl ego egp egr egs ela elb ele elg ell elo elp elr els eo- eoa eob eoe eog eol eoo eop eor eos ep- epa epb epe epg epl epo epp epr eps era erb ere erg erl ero erp err ers es- esa esb ese esg esl eso esp esr ess g-p gaa gab gae gag gal gao gap gar gas gba gbe gbg gbl gbo gbp gbr gbs ge- gea geb gee geg gel geo gep ger ges gga ggb ggg ggo ggp ggr ggs gla glb gle glg gll glo glp glr gls goa gob goe gog gol goo gop gor gos gpa gpb gpe gpg gpl gpo gpp gpr gps gra grb gre grg grl gro grp grr grs gsa gsb gse gsg gsl gso gsp gsr gss l-p la- laa lab lae lag lal lao lap lar las lba lbb lbe lbg lbl lbo lbp lbr lbs lea leb lee leg lel leo lep ler les lga lgb lge lgg lgl lgo lgp lgr lgs lla llb lle llg lll llo llp llr lls loa lob loe log lol loo lop lor los lpa lpb lpe lpg lpl lpo lpp lpr lps lra lrb lrg lro lrp lrr lrs lsa lsb lse lsg lsl lso lsp lsr lss oaa oab oae oag oal oao oap oar oas ob- oba obb obe obg obl obo obp obr obs oea oeb oee oeg oel oeo oep oer oes oga oge ogg ogl ogo ogp ogs ola olb ole olg oll olo olp ols oo- ooa oob oog ool ooo oop oor oos op- opa opb ope opg opl opo opp opr ops or- ora orb ore org orl oro orp orr ors os- osa osb ose osg osl oso osp osr oss p-p paa pab pae pag pal pao pap par pas pba pbb pbe pbg pbl pbo pbp pbr pbs pea peb pee peg pel peo pep per pes pga pgb pge pgg pgl pgo pgp pgr pgs pla plb ple plg pll plo plp plr pls poa pob poe pog pol poo pop por pos ppa ppb ppe ppg ppl ppo ppp ppr pps pra prb pre prg prl pro prp prr prs ps- psa psb pse psg psl pso psp psr pss ra- raa rab rae rag ral rao rap rar ras rba rbb rbe rbg rbl rbo rbp rbr rbs re- rea reb ree reg rel reo rep rer res rga rgb rge rgg rgo rgp rgr rgs rla rle rlg rll rlo rlp rlr rls roa rob roe rog rol roo rop ror ros rpa rpb rpe rpg rpl rpo rpp rpr rps rra rrb rrg rrl rrp rrr rrs rsa rsb rse rsg rsl rso rsp rsr rss saa sab sae sag sal sao sap sar sas sba sbb sbe sbg sbl sbo sbp sbr sbs se- sea seb see seg sel seo sep ser ses sga sgb sge sgg sgl sgo sgp sgr sgs sla slb sle slg sll slo slp slr sls soa sob soe sog sol soo sop sor sos spa spb spe spg spl spo spp spr sps sr- sra srb sre srg srl sro srp srr srs ss- ssa ssb sse ssg ssl sso ssp ssr sss