-al -er -ol a-a a-c aaa aac aae aaf aal aao aap aar aas ac- aca acc ace acf acl aco acp acr acs aea aec aee aef ael aeo aep aer aes af- afa afc afe aff afl afo afp afr afs al- ala alc ale alf all alo alp alr als aoa aoc aoe aof aol aoo aop aor aos ap- apa apc ape apf apl apo app apr aps ar- ara arc are arf arl aro arp arr ars as- asa asc ase asf asl aso asp asr ass c-- caa cac cae caf cal cao cap car cas cca ccc cce ccf ccl cco ccp ccr ccs ce- cea cec cee cef cel ceo cep cer ces cfa cfc cfe cff cfl cfo cfp cfr cfs cl- cla clc cle clf cll clo clp clr cls co- coa coc coe cof col coo cop cor cos cpa cpc cpe cpf cpl cpo cpp cpr cps cra crc cre crf crl cro crp crr crs csa csc cse csf csl cso csp csr css eaa eac eae eaf eal eao eap ear eas ec- eca ecc ece ecf ecl eco ecr ecs eea eec eee eef eel eeo eep eer ees ef- efa efc efe eff efl efo efp efr efs ela elc ele elf ell elo elp elr els eo- eoa eoc eoe eof eol eoo eop eor eos ep- epa epc epe epf epl epo epp epr eps era erc ere erf erl ero erp err ers es- esa esc ese esf esl eso esp esr ess faa fac fae faf fal fao fap far fas fca fcc fce fcf fcl fco fcp fcr fcs fea fec fee fef fel feo fep fer fes ffa ffc ffe fff ffl ffo ffp ffr ffs fla flc fle flf fll flo flp flr fls foa foc foe fof fol foo fop for fos fpa fpc fpe fpl fpo fpp fpr fps fra frc fre frf frl fro frp frr frs fsa fsc fse fsf fsl fso fsp fsr fss l-p la- laa lac lae laf lal lao lap lar las lca lcc lce lcf lcl lco lcp lcr lcs lea lec lee lef lel leo lep ler les lfa lfc lfe lff lfl lfo lfp lfr lfs lla llc lle llf lll llo llp llr lls loa loc loe lof lol loo lop lor los lpa lpc lpe lpf lpl lpo lpp lpr lps lra lrc lrf lro lrp lrr lrs lsa lsc lse lsf lsl lso lsp lsr lss oaa oac oae oaf oal oao oap oar oas oc- oca occ ocf ocl oco ocp ocr ocs oea oec oee oef oel oeo oep oer oes of- ofa ofc ofe off ofl ofo ofp ofr ofs ola olc ole olf oll olo olp ols oo- ooa ooc oof ool ooo oop oor oos op- opa opc ope opf opl opo opp opr ops or- ora orc ore orf orl oro orp orr ors os- osa osc ose osf osl oso osp osr oss p-p paa pac pae paf pal pao pap par pas pca pcc pce pcf pcl pco pcp pcr pcs pea pec pee pef pel peo pep per pes pfa pfc pfe pff pfl pfo pfp pfr pfs pla plc ple plf pll plo plp plr pls poa poc poe pof pol poo pop por pos ppa ppc ppe ppf ppl ppo ppp ppr pps pra prc pre prf prl pro prp prr prs ps- psa psc pse psf psl pso psp psr pss ra- raa rac rae raf ral rao rap rar ras rca rcc rce rcf rcl rco rcp rcr rcs re- rea rec ree ref rel reo rep rer res rfa rfc rfe rff rfl rfo rfp rfr rfs rla rlc rle rlf rll rlo rlp rlr rls roa roc roe rof rol roo rop ror ros rpa rpc rpe rpf rpl rpo rpp rpr rps rra rrc rrf rrl rrp rrr rrs rsa rsc rse rsf rsl rso rsp rsr rss saa sac sae saf sal sao sap sar sas sca scc sce scf scl sco scp scr scs se- sea sec see sef sel seo sep ser ses sfa sfc sfe sff sfl sfo sfp sfr sfs sla slc sle slf sll slo slp slr sls soa soc soe sof sol soo sop sor sos spa spc spe spf spl spo spp spr sps sr- sra src sre srf srl sro srp srr srs ss- ssa ssc sse ssf ssl sso ssp ssr sss