-er -ey a-a a-c aaa aac aae aag aan aar aau aay ac- aca acc ace acg acn acr acu acy aea aec aee aeg aen aer aeu aey ag- aga agc age agg agn agr agu agy an- ana anc ane ang ann anr anu any ar- ara arc are arg arn arr aru ary au- aua auc aue aug aun aur ay- aya ayc aye ayn ayr ayu c-- caa cac cae cag can car cau cay cca ccc cce ccg ccn ccr ccu ce- cea cec cee ceg cen cer ceu cey cga cgc cge cgg cgn cgr cgu cgy cn- cna cnc cne cng cnn cnr cnu cny cra crc cre crg crn crr cru cry cua cuc cue cug cun cur cuu cuy cya cyc cye cyg cyn cyr eaa eac eae eag ean ear eau ec- eca ecc ece ecg ecn ecr ecu eea eec eee eeg een eer eey ega egc ege egg egn egr egu egy en- ena enc ene eng enn enr enu eny era erc ere erg ern err eru ery eu- eua euc eue eug eun eur eya eyc eye eyn eyr gaa gac gae gag gan gar gau gay gca gcc gce gcg gcn gcr gcu ge- gea gec gee geg gen ger geu gey gga ggc ggg ggn ggr ggu gna gnc gne gnn gnr gnu gra grc gre grg grn grr gru gry gu- gua guc gue gug gun gur guu guy gy- gya gye gyn gyr naa nac nae nag nan nar nau nay nca ncc nce ncg ncn ncr ncu ne- nea nec nee neg nen ner neu ney nga ngc nge ngg ngn ngu nna nnc nne nng nnn nnu nra nrc nre nrg nrn nrr nru nry nua nuc nue nug nun nur nuu nuy nya nyc nye nyg nyn nyu nyy ra- raa rac rae rag ran rar rau ray rca rcc rce rcg rcn rcr rcu re- rea rec ree reg ren rer reu rey rga rgc rge rgg rgn rgr rna rnc rng rnn rnr rnu rny rra rrc rrg rrn rrr rru rua ruc rue rug run rur ruu ruy ry- rya ryc rye ryg ryn ryr ryu ryy ua- uaa uac uae uag uan uar uau uay uca ucc uce ucg ucn ucr ucu uea uec uee ueg uen uer uey uga ugc uge ugg ugn ugr ugu un- una unc une ung unn unr unu uny ur- ura urc ure urg urn urr uru ury uua uuc uue uug uun uur uuu uyc uyu yaa yac yae yag yan yar yau yay yca ycc yce ycu ycy yea yec yee yeg yen yer yey yga ygc yna yne yng ynn ynu yny yra yrc yre yrg yrn yru yua yue yug yun yur yuu yuy yyc yye yyg yyu yyy