STRIFFEN

ef en er es et fe if in is it ne re si ti

eff efs eft ens ern ers fen fer fes fet fie fin fir fit iff ifs ins ire its net nit ref rei res ret rif rin sei sen ser set sin sir sit sri ten tie tin tis

effs efts erns erst fens fern fest fets fief fife fine fins fire firn firs fist fits fret frit ires neif nest nets nite nits refs reft reif rein reis rent rest rets rife riff rifs rift rins rise rite seif sent serf sift sine sire site snit stir teff tens tern tier ties tiff tine tins tire tref tres