-al -ol a-a a-c a-t aaa aac aal aao aat ac- aca acc acl aco act al- ala alc all alo alt aoa aoc aol aoo aot at- ata atc atl ato att c-- caa cac cal cao cat cca ccc ccl cco cct cl- cla clc cll clo clt co- coa coc col coo cot cta ctc ctl cto ctt la- laa lac lal lao lat lca lcc lcl lco lct lla llc lll llo llt loa loc lol loo lot lta ltc ltl lto ltt oaa oac oal oao oat oc- oca occ ocl oco oct ola olc oll olo olt oo- ooa ooc ool ooo oot ot- ota otc otl oto ott taa tac tal tao tat tca tcc tcl tco tct tla tlc tll tlo tlt to- toa toc tol too tot tta ttc ttl tto ttt