-er -ey -ic a-a a-c a-i aaa aac aae aag aai aar aay ac- aca acc ace acg aci acr acy aea aec aee aeg aei aer aey ag- aga agc age agg agi agr agy ai- aia aic aie aig aii air aiy ar- ara arc are arg ari arr ary ay- aya ayc aye ayi ayr c-- caa cac cae cag cai car cay cca ccc cce ccg cci ccr ce- cea cec cee ceg cei cer cey cga cgc cge cgg cgi cgr cgy ci- cia cic cie cig cii cir cra crc cre crg cri crr cry cya cyc cye cyg cyr eaa eac eae eag eai ear ec- eca ecc ece ecg eci ecr eea eec eee eeg eer eey ega egc ege egg egi egr egy eia eic eie eig eii eir era erc ere erg eri err ery eya eyc eye eyr gaa gac gae gag gai gar gay gca gcc gce gcg gci gcr ge- gea gec gee geg gei ger gey gga ggc ggg ggi ggr gia gic gie gig gii gir giy gra grc gre grg gri grr gry gy- gya gye gyr ia- iaa iac iae iag iai iar ica icc ice icg ici icr icy ie- iea iec iee ieg iei ier iey iga igc ige igg igi igr igy iia iic iie iii iir ir- ira irc ire irg iri irr iry iya iyc iye iyr iyy ra- raa rac rae rag rai rar ray rca rcc rce rcg rci rcr re- rea rec ree reg rei rer rey rga rgc rge rgg rgi rgr ria ric rie rig rii rir riy rra rrc rrg rri rrr ry- rya ryc rye ryg ryr ryy yaa yac yae yag yai yar yay yca ycc yce yci ycy yea yec yee yeg yei yer yey yga ygc yie yig yii yir yra yrc yre yrg yyc yye yyg yyy