ccccc cccii cciii ccxii ceci- cecie cecri ceere ceese ceiss cerc- cerce cerci cercs cerec cerer ceres ceric cerie ceris cerre cerrs cerse cerss cesce cescr cesis cesse cicer cicis circe circs cires cirex ciric cirie ciris cirr- cirri cirs- cirse ciser cises cisie cisse crece creer crees creis cresc crese cress crice crics crier cries crise criss crres csere cssii e-sir ecser eeeee eerie eires eirie eisie ercis ercsi erecs ereis erere eresi erice erics erier eries eriic erixx erres erris erses esces escis esere esics esiee esiri esser esses essex essie essse ex-ic excsc execs execx exies exsec iceci icees iceis icers icici icier icscc iecee ieiri ierei iiiee iiiii iiris iisir ircii irece iress iris- irise iriss irsee irssi is-is iscsi isisi isrec issei isser issex issie issre isssc rcirc recce reece reecs reere reese reice reise reiss rere- reree reres reric rerir resee reses resse rexer rexes ricci ricer rices ricse riers riese riesi riess riise rires ririe risee riser rises risse s-cis s-iii sccci scere scire sciri scise screc scree scrie scris secir secre see-i seece seeis seere seers seese seire seirs seise seiss serce serec serer seres seric serie serir seris serre serri serse sersi serss sesce seser seses sesis sesse sexer sexes sexi- sexie sexis sicer sices sieic sieie siese sirce sirci siree sires sirex siris sirse sirsi siser sises sisic sisis sissi sixer sixes ssies sssss x-ris xciii xeres xeric xerse xexex xxiii xxxii xxxix