-al -ol a-a a-c a-t aaa aac aae aal aao aap aat ac- aca acc ace acl aco acp act aea aec aee ael aeo aep aet al- ala alc ale all alo alp alt aoa aoc aoe aol aoo aop aot ap- apa apc ape apl apo app apt at- ata atc ate atl ato atp att c-- caa cac cae cal cao cap cat cca ccc cce ccl cco ccp cct ce- cea cec cee cel ceo cep cet cl- cla clc cle cll clo clp clt co- coa coc coe col coo cop cot cpa cpc cpe cpl cpo cpp cpt cta ctc cte ctl cto ctp ctt eaa eac eae eal eao eap eat ec- eca ecc ece ecl eco ect eea eec eee eel eeo eep eet ela elc ele ell elo elp elt eo- eoa eoc eoe eol eoo eop eot ep- epa epc epe epl epo epp ept eta etc ete etl eto etp ett l-p la- laa lac lae lal lao lap lat lca lcc lce lcl lco lcp lct lea lec lee lel leo lep let lla llc lle lll llo llp llt loa loc loe lol loo lop lot lpa lpc lpe lpl lpo lpp lpt lta ltc lte ltl lto ltp ltt oaa oac oae oal oao oap oat oc- oca occ ocl oco ocp oct oea oec oee oel oeo oep oet ola olc ole oll olo olp olt oo- ooa ooc ool ooo oop oot op- opa opc ope opl opo opp opt ot- ota otc ote otl oto otp ott p-p paa pac pae pal pao pap pat pca pcc pce pcl pco pcp pct pea pec pee pel peo pep pet pla plc ple pll plo plp plt poa poc poe pol poo pop pot ppa ppc ppe ppl ppo ppp ppt pt- pta ptc pte ptl pto ptp ptt taa tac tae tal tao tap tat tca tcc tce tcl tco tcp tct te- tea tec tee tel teo tep tet tla tlc tle tll tlo tlp tlt to- toa toc toe tol too top tot tpa tpc tpe tpl tpo tpp tpt tta ttc tte ttl tto ttp ttt