-al -ol a-a a-c aaa aac aae aal aao ac- aca acc ace acl aco aea aec aee ael aeo al- ala alc ale all alo aoa aoc aoe aol aoo c-- caa cac cae cal cao cca ccc cce ccl cco ce- cea cec cee cel ceo cl- cla clc cle cll clo co- coa coc coe col coo eaa eac eae eal eao ec- eca ecc ece ecl eco eea eec eee eel eeo ela elc ele ell elo eo- eoa eoc eoe eol eoo la- laa lac lae lal lao lca lcc lce lcl lco lea lec lee lel leo lla llc lle lll llo loa loc loe lol loo oaa oac oae oal oao oc- oca occ ocl oco oea oec oee oel oeo ola olc ole oll olo oo- ooa ooc ool ooo