e-sir eeeee eerie efere eferi effer effie efrei efuru efuse eires eirie eisie ereis erere eresi erier eries eriff erres erris erses esere esiee esiri esref esser esses essie essse essue esure eurre eurus euser feere feers feese feier feres ferie ferr- ferre ferri ferse ferus feser fesse feuer feurs fieee fiefs fieri fiers fifer fifes fifie firee firei firer fires firie firre firse fissi freei freer frees freir freis frere frese fress freur frier fries friis frise friss fu-fu fuffs furie furir furrs furse furus fusee fuser fuses fusi- fusie fusse fusus fuuse ieiri ierei if-- ifere ifius iiiee iiiii iiris iisir iress iris- irise iriss irisu irsee irssi is-is iseeu isisi issei isser issie issre issru issue issus issuu isure isuus iurie reefe reefs reere reese refer reffe refis refus reiff reise reiss rere- reree reres rerir resee reses resse resue resus reuer reuir reuis reuse reuss ri-fi riefe riers riese riesi riess rifer riffs riife riise riisu rires ririe risee riser rises risse risus riuer rsssf ruere ruers ruffe ruffs rufi- rufie rufus ruiru ruses rusie russe russi s-iii see-i seeif seeis seere seers seese seesu sefer sefes seffe seifs seifu seire seirs seise seiss seref serer seres serfe serff serfs serie serif serir seris serre serri serse sersi serss serue seser seses sesis sesse sesue seuer seuir seure seuss sfeir sieff sieie siese sieu sieur sifie sifre sifus siree sires siris siriu sirse sirsi sirur siser sises sisis sissi sissu siuri siuru siusi ssies sssss suere suers suess sueur sufes suffe suffr suffs sufis sufri surer sures surfs surif surir suris surre surui surur surus suser suses susie susse susus u-ies ufere ufeus uffie urris ursus ururi urusi usees users usies usire usses ussie usure ususi uusis uuuuu