Letter on position 1 (f) changed: 4 words brats drats prats trats Letter on position 2 (r) changed: 3 words feats fiats flats Letter on position 3 (a) changed: 2 words frets frits Letter on position 4 (t) changed: 6 words frabs frags fraps frass fraus frays Letter on position 5 (s) changed: 2 words frate frati