FIBREOPTIC

be bi bo ef er et fe if it oe of oi op or pe pi re ti to

bet bio bit bop bot bro cep cob cop cor cot eft fer fet fib fie fir fit fob foe fop for fro ice ire obe obi oft ope opt orb orc ore ort pec per pet pic pie pit poi pot pro reb rec ref rei rep ret rib rif rip rob roc roe rot tic tie tip toe top tor

bice bier biro bite bore bort brie brio brit cero cire cite coft coif coir cope core corf cote crib crit crop epic etic fice fico fire foci forb fore fort fret frit froe obit otic peri pert pice pier poet pore port prof reft reif repo rice rife rift riot ripe rite robe rope rote roti tier tipi tire tiro tope topi torc tore tori tref trio trip trop