-al -ol a-a a-c aaa aac aad aal aao aap ac- aca acc acd acl aco acp ad- ada adc add adl ado adp al- ala alc ald all alo alp aoa aoc aod aol aoo aop ap- apa apc apd apl apo app c-- caa cac cad cal cao cap cca ccc ccd ccl cco ccp cda cdc cdd cdl cdo cdp cl- cla clc cld cll clo clp co- coa coc cod col coo cop cpa cpc cpd cpl cpo cpp daa dac dad dal dao dap dca dcc dcd dcl dco dcp dda ddc ddd ddl ddo ddp dl- dla dlc dld dll dlo dlp doa doc dod dol doo dop dpa dpc dpd dpl dpo dpp l-p la- laa lac lad lal lao lap lca lcc lcd lcl lco lcp lda ldc ldd ldl ldo ldp lla llc lld lll llo llp loa loc lod lol loo lop lpa lpc lpd lpl lpo lpp oaa oac oad oal oao oap oc- oca occ ocd ocl oco ocp oda odc odd odl odo odp ola olc old oll olo olp oo- ooa ooc ood ool ooo oop op- opa opc opd opl opo opp p-p paa pac pad pal pao pap pca pcc pcd pcl pco pcp pda pdc pdd pdl pdo pdp pla plc pld pll plo plp poa poc pod pol poo pop ppa ppc ppd ppl ppo ppp