TRIOLEFIN

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

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

enol felt fern file filo fine fino fire firn flir flit floe foil foin font fore fort fret frit froe info inro inti into iron left leno lent lief lien lier life lift line lino lint lion lire liri lite loft loin lone lore lorn loti neif nite noel noil noir nori note orle 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