-al -er -ol a-a a-c aaa aac aae aal aao aar aas ac- aca acc ace acl aco acr acs aea aec aee ael aeo aer aes al- ala alc ale all alo alr als aoa aoc aoe aol aoo aor aos ar- ara arc are arl aro arr ars as- asa asc ase asl aso asr ass c-- caa cac cae cal cao car cas cca ccc cce ccl cco ccr ccs ce- cea cec cee cel ceo cer ces cl- cla clc cle cll clo clr cls co- coa coc coe col coo cor cos cra crc cre crl cro crr crs csa csc cse csl cso csr css eaa eac eae eal eao ear eas ec- eca ecc ece ecl eco ecr ecs eea eec eee eel eeo eer ees ela elc ele ell elo elr els eo- eoa eoc eoe eol eoo eor eos era erc ere erl ero err ers es- esa esc ese esl eso esr ess la- laa lac lae lal lao lar las lca lcc lce lcl lco lcr lcs lea lec lee lel leo ler les lla llc lle lll llo llr lls loa loc loe lol loo lor los lra lrc lro lrr lrs lsa lsc lse lsl lso lsr lss oaa oac oae oal oao oar oas oc- oca occ ocl oco ocr ocs oea oec oee oel oeo oer oes ola olc ole oll olo ols oo- ooa ooc ool ooo oor oos or- ora orc ore orl oro orr ors os- osa osc ose osl oso osr oss ra- raa rac rae ral rao rar ras rca rcc rce rcl rco rcr rcs re- rea rec ree rel reo rer res rla rlc rle rll rlo rlr rls roa roc roe rol roo ror ros rra rrc rrl rrr rrs rsa rsc rse rsl rso rsr rss saa sac sae sal sao sar sas sca scc sce scl sco scr scs se- sea sec see sel seo ser ses sla slc sle sll slo slr sls soa soc soe sol soo sor sos sr- sra src sre srl sro srr srs ss- ssa ssc sse ssl sso ssr sss