INTROFLEX

ef el en er et ex fe if in it li lo ne no oe of oi on or ox re ti to xi

eft elf eon ern fen fer fet fie fil fin fir fit fix foe fon for fox fro ion ire lei let lex lie lin lit lot lox net nil nit nix nor not oft oil ole one ore ort ref rei ret rex rif rin roe rot tel ten tie til tin toe ton tor

enol exit exon felt fern file filo fine fino fire firn fixt flex flir flit floe foil foin font fore fort fret frit froe ilex info inro into iron left leno lent lief lien lier life lift line lino lint lion lire lite loft loin lone lore lorn loti neif next nite nixe noel noil noir nori note orle oxen reft reif rein rent riel rife rift rile riot rite roil role rolf rote roti rotl tern tier tile tine tire tirl tiro toil tole tone tore tori torn tref trio