-al -er a-a a-c aaa aac aae aag aal aar aau ac- aca acc ace acg acl acr acu aea aec aee aeg ael aer aeu ag- aga agc age agg agl agr agu al- ala alc ale alg all alr alu ar- ara arc are arg arl arr aru au- aua auc aue aug aul aur c-- caa cac cae cag cal car cau cca ccc cce ccg ccl ccr ccu ce- cea cec cee ceg cel cer ceu cga cgc cge cgg cgl cgr cgu cl- cla clc cle clg cll clr clu cra crc cre crg crl crr cru cua cuc cue cug cul cur cuu eaa eac eae eag eal ear eau ec- eca ecc ece ecg ecl ecr ecu eea eec eee eeg eel eer ega egc ege egg egl egr egu ela elc ele elg ell elr elu era erc ere erg erl err eru eu- eua euc eue eug eul eur gaa gac gae gag gal gar gau gca gcc gce gcg gcl gcr gcu ge- gea gec gee geg gel ger geu gga ggc ggg ggr ggu gla glc gle glg gll glr glu gra grc gre grg grl grr gru gu- gua guc gue gug gul gur guu la- laa lac lae lag lal lar lau lca lcc lce lcg lcl lcr lcu lea lec lee leg lel ler leu lga lgc lge lgg lgl lgr lgu lla llc lle llg lll llr llu lra lrc lrg lrr lru lua luc lue lug lul lur luu ra- raa rac rae rag ral rar rau rca rcc rce rcg rcl rcr rcu re- rea rec ree reg rel rer reu rga rgc rge rgg rgr rla rlc rle rlg rll rlr rlu rra rrc rrg rrl rrr rru rua ruc rue rug rur ruu ua- uaa uac uae uag ual uar uau uca ucc uce ucg ucl ucr ucu uea uec uee ueg uel uer uga ugc uge ugg ugl ugr ugu ula ulc ule ulg ull ulr ulu ur- ura urc ure urg url urr uru uua uuc uue uug uur uuu