-al -ol a-a a-c aaa aac aal aao aap aar aas ac- aca acc acl aco acp acr acs al- ala alc all alo alp alr als aoa aoc aol aoo aop aor aos ap- apa apc apl apo app apr aps ar- ara arc arl aro arp arr ars as- asa asc asl aso asp asr ass c-- caa cac cal cao cap car cas cca ccc ccl cco ccp ccr ccs cl- cla clc cll clo clp clr cls co- coa coc col coo cop cor cos cpa cpc cpl cpo cpp cpr cps cra crc crl cro crp crr crs csa csc csl cso csp csr css l-p la- laa lac lal lao lap lar las lca lcc lcl lco lcp lcr lcs lla llc lll llo llp llr lls loa loc lol loo lop lor los lpa lpc lpl lpo lpp lpr lps lra lrc lro lrp lrr lrs lsa lsc lsl lso lsp lsr lss oaa oac oal oao oap oar oas oc- oca occ ocl oco ocp ocr ocs ola olc oll olo olp ols oo- ooa ooc ool ooo oop oor oos op- opa opc opl opo opp opr ops or- ora orc orl oro orp orr ors os- osa osc osl oso osp osr oss p-p paa pac pal pao pap par pas pca pcc pcl pco pcp pcr pcs pla plc pll plo plp plr pls poa poc pol poo pop por pos ppa ppc ppl ppo ppp ppr pps pra prc prl pro prp prr prs ps- psa psc psl pso psp psr pss ra- raa rac ral rao rap rar ras rca rcc rcl rco rcp rcr rcs rla rlc rll rlo rlp rlr rls roa roc rol roo rop ror ros rpa rpc rpl rpo rpp rpr rps rra rrc rrl rrp rrr rrs rsa rsc rsl rso rsp rsr rss saa sac sal sao sap sar sas sca scc scl sco scp scr scs sla slc sll slo slp slr sls soa soc sol soo sop sor sos spa spc spl spo spp spr sps sr- sra src srl sro srp srr srs ss- ssa ssc ssl sso ssp ssr sss