-al -ol a-a a-c a-t aaa aac aae aal aao aat aav ac- aca acc ace acl aco act acv aea aec aee ael aeo aet aev al- ala alc ale all alo alt alv aoa aoc aoe aol aoo aot aov at- ata atc ate atl ato att atv av- ava avc ave avl avo avt c-- caa cac cae cal cao cat cav cca ccc cce ccl cco cct ccv ce- cea cec cee cel ceo cet cev cl- cla clc cle cll clo clt clv co- coa coc coe col coo cot cov cta ctc cte ctl cto ctt ctv cva cvc cve cvl cvo cvt cvv eaa eac eae eal eao eat eav ec- eca ecc ece ecl eco ect ecv eea eec eee eel eeo eet eev ela elc ele ell elo elt elv eo- eoa eoc eoe eol eoo eot eta etc ete etl eto ett etv eva evc eve evl evo evt evv la- laa lac lae lal lao lat lav lca lcc lce lcl lco lct lcv lea lec lee lel leo let lev lla llc lle lll llo llt llv loa loc loe lol loo lot lov lta ltc lte ltl lto ltt ltv lva lvc lve lvl lvt lvv oaa oac oae oal oao oat oav oc- oca occ ocl oco oct ocv oea oec oee oel oeo oet ola olc ole oll olo olt oo- ooa ooc ool ooo oot oov ot- ota otc ote otl oto ott otv ov- ova ovc ove ovl ovo ovv taa tac tae tal tao tat tav tca tcc tce tcl tco tct tcv te- tea tec tee tel teo tet tev tla tlc tle tll tlo tlt tlv to- toa toc toe tol too tot tov tta ttc tte ttl tto ttt ttv tva tvc tve tvl tvo tvt v-a v-e vaa vac vae val vao vat vav vca vcc vce vcl vco vct vea vec vee vel veo vet vl- vla vlc vle vll vlo vlt vlv voa voc voe vol voo vot vov vta vtc vte vtl vto vtt vtv vva vvc vvo vvt vvv