-er -ey -ic a-a a-c a-i aaa aac aae aaf aai aak aar aas aay ac- aca acc ace acf aci ack acr acs acy aea aec aee aef aei aek aer aes aey af- afa afc afe aff afi afk afr afs afy ai- aia aic aie aif aii aik air ais aiy aka akc ake aki akk akr aks ar- ara arc are arf ari ark arr ars ary as- asa asc ase asf asi ask asr ass asy ay- aya ayc aye ayf ayi ayk ayr ays c-- caa cac cae caf cai cak car cas cay cca ccc cce ccf cci cck ccr ccs ce- cea cec cee cef cei cek cer ces cey cfa cfc cfe cff cfi cfk cfr cfs ci- cia cic cie cif cii cik cir cis cka ckc cki cks cky cra crc cre crf cri crk crr crs cry csa csc cse csf csi csk csr css csy cya cyc cye cyf cyk cyr cys eaa eac eae eaf eai eak ear eas ec- eca ecc ece ecf eci eck ecr ecs eea eec eee eef eek eer ees eey ef- efa efc efe eff efi efr efs eia eic eie eif eii eik eir eis eka ekc eke ekf eki ekr eks eky era erc ere erf eri erk err ers ery es- esa esc ese esf esi esk esr ess esy eya eyc eye eyr eys faa fac fae faf fai fak far fas fay fca fcc fce fcf fci fck fcr fcs fcy fea fec fee fef fei fek fer fes fey ffa ffc ffe fff ffi ffk ffr ffs ffy fia fic fie fif fii fik fir fis fka fkc fkf fki fkk fra frc fre frf fri frk frr frs fry fsa fsc fse fsf fsi fsk fsr fss fy- fya fyc fye fyi fyk i-f ia- iaa iac iae iaf iai iar ias ica icc ice icf ici ick icr ics icy ie- iea iec iee ief iei iek ier ies iey ifa ifc ife iff ifi ifr ifs ify iia iic iie iif iii iir iis ika ikc ike ikf iki ikk ikr iks ir- ira irc ire irf iri irk irr irs iry is- isa isc ise isf isi isk isr iss isy iya iyc iye iyr iys iyy ka- kaa kac kae kaf kai kak kar kas kay kca kcc kce kci kck kcr kcs ke- kea kec kee kef kei kek ker kes key kfa kfc kff kfi kfs kia kic kie kif kii kik kir kis kkc kke kki kkk kkr kks kky kra krc krf kri krk krr krs kry ksa ksc kse ksf ksi ksk ksr kss kya kyc kye kyr kys ra- raa rac rae raf rai rak rar ras ray rca rcc rce rcf rci rcr rcs re- rea rec ree ref rei rek rer res rey rfa rfc rfe rff rfi rfk rfr rfs ria ric rie rif rii rik rir ris riy rkc rke rkf rkk rks rky rra rrc rrf rri rrk rrr rrs rsa rsc rse rsf rsi rsk rsr rss ry- rya ryc rye ryf ryk ryr rys ryy saa sac sae saf sai sak sar sas say sca scc sce scf sci sck scr scs se- sea sec see sef sei sek ser ses sey sfa sfc sfe sff sfi sfk sfr sfs sia sic sie sif sii sik sir sis sk- ska skc ske skf ski skk skr sks sky sr- sra src sre srf sri srk srr srs sry ss- ssa ssc sse ssf ssi ssk ssr sss sy- sya syc sye syi syk syr sys yaa yac yae yaf yai yak yar yas yay yca ycc yce ycf yci ycs ycy yea yec yee yef yei yek yer yes yey yfa yfc yfe yff yfr yfs yie yif yii yir yis yka yki ykk yra yrc yre yrf yrs ysa ysc yse ysi ysk ysr yss ysy yyc yye yyf yys yyy