Letter on position 1 (b) changed: 4 words clats flats plats slats Letter on position 2 (l) changed: 4 words beats boats brats buats Letter on position 3 (a) changed: 2 words blets blots Letter on position 4 (t) changed: 8 words blabs blads blaes blags blahs blams blaws blays Letter on position 5 (s) changed: 2 words blate blatt