Letter on position 1 (b) changed: 16 words cags dags fags gags hags jags lags mags nags rags sags tags vags wags yags zags Letter on position 2 (a) changed: 4 words begs bigs bogs bugs Letter on position 3 (g) changed: 11 words baas bacs bads bals bams bans baps bars bass bats bays Letter on position 4 (s) changed: 1 word bagh