-er -ey a-a a-c aaa aac aae aaf aao aap aar aas aay ac- aca acc ace acf aco acp acr acs acy aea aec aee aef aeo aep aer aes aey af- afa afc afe aff afo afp afr afs afy aoa aoc aoe aof aoo aop aor aos ap- apa apc ape apf apo app apr aps apy ar- ara arc are arf aro arp arr ars ary as- asa asc ase asf aso asp asr ass asy ay- aya ayc aye ayf ayo ayp ayr ays c-- caa cac cae caf cao cap car cas cay cca ccc cce ccf cco ccp ccr ccs ce- cea cec cee cef ceo cep cer ces cey cfa cfc cfe cff cfo cfp cfr cfs co- coa coc coe cof coo cop cor cos coy cpa cpc cpe cpf cpo cpp cpr cps cra crc cre crf cro crp crr crs cry csa csc cse csf cso csp csr css csy cya cyc cye cyf cyo cyp cyr cys eaa eac eae eaf eao eap ear eas ec- eca ecc ece ecf eco ecr ecs eea eec eee eef eeo eep eer ees eey ef- efa efc efe eff efo efp efr efs eo- eoa eoc eoe eof eoo eop eor eos ep- epa epc epe epf epo epp epr eps era erc ere erf ero erp err ers ery es- esa esc ese esf eso esp esr ess esy eya eyc eye eyo eyp eyr eys faa fac fae faf fao fap far fas fay fca fcc fce fcf fco fcp fcr fcs fcy fea fec fee fef feo fep fer fes fey ffa ffc ffe fff ffo ffp ffr ffs ffy foa foc foe fof foo fop for fos foy fpa fpc fpe fpo fpp fpr fps fpy fra frc fre frf fro frp frr frs fry fsa fsc fse fsf fso fsp fsr fss fy- fya fyc fye fyo fyp oaa oac oae oaf oao oap oar oas oc- oca occ ocf oco ocp ocr ocs oea oec oee oef oeo oep oer oes oey of- ofa ofc ofe off ofo ofp ofr ofs oo- ooa ooc oof ooo oop oor oos op- opa opc ope opf opo opp opr ops opy or- ora orc ore orf oro orp orr ors ory os- osa osc ose osf oso osp osr oss oya oye oyo oys p-p paa pac pae paf pao pap par pas pay pca pcc pce pcf pco pcp pcr pcs pea pec pee pef peo pep per pes pey pfa pfc pfe pff pfo pfp pfr pfs pfy poa poc poe pof poo pop por pos poy ppa ppc ppe ppf ppo ppp ppr pps pra prc pre prf pro prp prr prs pry ps- psa psc pse psf pso psp psr pss psy py- pya pyc pye pyf pyo pyr pys ra- raa rac rae raf rao rap rar ras ray rca rcc rce rcf rco rcp rcr rcs re- rea rec ree ref reo rep rer res rey rfa rfc rfe rff rfo rfp rfr rfs roa roc roe rof roo rop ror ros roy rpa rpc rpe rpf rpo rpp rpr rps rra rrc rrf rrp rrr rrs rsa rsc rse rsf rso rsp rsr rss ry- rya ryc rye ryf ryo ryr rys ryy saa sac sae saf sao sap sar sas say sca scc sce scf sco scp scr scs se- sea sec see sef seo sep ser ses sey sfa sfc sfe sff sfo sfp sfr sfs soa soc soe sof soo sop sor sos soy spa spc spe spf spo spp spr sps spy sr- sra src sre srf sro srp srr srs sry ss- ssa ssc sse ssf sso ssp ssr sss sy- sya syc sye syp syr sys yaa yac yae yaf yao yap yar yas yay yca ycc yce ycf yco ycp ycs ycy yea yec yee yef yeo yep yer yes yey yfa yfc yfe yff yfr yfs yoc yoe yof yoo yop yor yos yoy ypa ypf ypo yps yra yrc yre yrf yro yrp yrs ysa ysc yse yso ysp ysr yss ysy yyc yye yyf yys yyy