eeeee eeros eesof efere effer efore eofor eorre erere eroes eroor eroos erore erose eross erres error erses esere esref esser esses essex essor essse exoes exofs exore feeor feere feers feese fefor feoff feres ferox ferr- ferre ferro ferse feser fesse fesso fofos foore foose fore- foreo fores forex foros forro forse forso forss fosse foxer foxes foxxx freer frees freex frere frese fress froes frore frose o-fer oeses offer offof offre ofsee ofsex oo-er ooooo ooser oreo- oreos orere orero orexo orfeo orfes orfoe orfor oroer orose oroso orser orses ososo osse- osseo osser ossos oxers reefe reefs reere reese refer reffe reffo reorx reose rere- reree reres resee reses resor resse rexer rexes ro-ro roero roers roffe rofor rooer roofe roofs roore roose rorer rosee roseo roser roses rosse rosso rosss rsssf s-o-r seeor seere seers seese seeso sefer sefes seffe sefor sefro seofe seref serer seres serfe serff serfs sero- serre serro serse serss seser seses sesse sexer sexes sexor so-so soers sofer sofex soffe sofre soore soree sorer sores sorex soroe soror soros sorre sorso soses soss- soxer sroof sssss xeres xero- xeros xerox xerse xexex xfers xorro xoser xoxox