cccc cccl cccp cclc ccnc ccnp ccnr ccoc ccpl ccpn ccpp ccpr ccrc ccrl ccrp clon cloo clop clor clpp clro cnco cncp cnrc cnrr coco cocp col- coll coln colo colp con- conc conn cono cool coon coop copo copp copr cor- corc corl corn coro corp corr cplc crcc crcr croc crol cron croo crop cror crpc lccc lcor lcpc lcpl lcrl llcc lllc llll lloc lloo lncr locc locn loco loll lolo lono lonr looc lool loon loop loor lopp lorn loro lppl lprp lroc lron lrrc lrrr nccc nccn nccp nccr nclc ncln nclr ncnc ncoc ncor ncpc ncrc ncrp nlcc nlpc nlrp nnnn nnpr nocl noco noll nolo nolp non- nonn nono noo- nool noon nooo noop noor nor- norc norn noro norr npcc nppc nppl nroc nron nrpc nrpn nrrc nrrl occc occn oclc ocon ocpp ocrl ocro ocrr olcc ollo olon olor olpc onc- onco onno onon onor oocr oolo oooo opo- opon opor oppo orco orlo ornc orno oro- oron oror orpc orro pccc pccl pcll pclo pcpn pcpp pcrc pcrl plcc ploc plon ploo plop plpp pnln pnnl pnon pnpo pnpp pnro poco poll polo ponc pono ponp pool poon poop poor pop- popc popo popp porc porn poro porr ppcc pplo pppn pppo pppp pprc prcc prcp prlr prnp pro- proc prol pron proo prop rccc rcnl rcnr rcon rcpo rnco rncp rocc roco roll rolo rolp ronc rono rool roon roop roor ropo rorc roro rpon rppn rrrr