Letter on position 1 (g) changed: 13 words bens cens dens fens hens kens lens pens rens sens tens wens yens Letter on position 2 (e) changed: 4 words gans gins gons guns Letter on position 3 (n) changed: 6 words geds gees gels gems geos gets Letter on position 4 (s) changed: 4 words gena gene gent genu