-al -ol a-a a-c aaa aac aae aal aao aap ac- aca acc ace acl aco acp aea aec aee ael aeo aep al- ala alc ale all alo alp aoa aoc aoe aol aoo aop ap- apa apc ape apl apo app c-- caa cac cae cal cao cap cca ccc cce ccl cco ccp ce- cea cec cee cel ceo cep cl- cla clc cle cll clo clp co- coa coc coe col coo cop cpa cpc cpe cpl cpo cpp eaa eac eae eal eao eap ec- eca ecc ece ecl eco eea eec eee eel eeo eep ela elc ele ell elo elp eo- eoa eoc eoe eol eoo eop ep- epa epc epe epl epo epp l-p la- laa lac lae lal lao lap lca lcc lce lcl lco lcp lea lec lee lel leo lep lla llc lle lll llo llp loa loc loe lol loo lop lpa lpc lpe lpl lpo lpp oaa oac oae oal oao oap oc- oca occ ocl oco ocp oea oec oee oel oeo oep ola olc ole oll olo olp oo- ooa ooc ool ooo oop op- opa opc ope opl opo opp p-p paa pac pae pal pao pap pca pcc pce pcl pco pcp pea pec pee pel peo pep pla plc ple pll plo plp poa poc poe pol poo pop ppa ppc ppe ppl ppo ppp