-al -er a-a a-c aaa aac aae aal aar ac- aca acc ace acl acr aea aec aee ael aer al- ala alc ale all alr ar- ara arc are arl arr c-- caa cac cae cal car cca ccc cce ccl ccr ce- cea cec cee cel cer cl- cla clc cle cll clr cra crc cre crl crr eaa eac eae eal ear ec- eca ecc ece ecl ecr eea eec eee eel eer ela elc ele ell elr era erc ere erl err la- laa lac lae lal lar lca lcc lce lcl lcr lea lec lee lel ler lla llc lle lll llr lra lrc lrr ra- raa rac rae ral rar rca rcc rce rcl rcr re- rea rec ree rel rer rla rlc rle rll rlr rra rrc rrl rrr