Letter on position 1 (t) changed: 6 words fems gems hems mems rems wems Letter on position 2 (e) changed: 3 words tams toms tums Letter on position 3 (m) changed: 10 words teas tecs teds tees tefs tegs tels tens tets tews Letter on position 4 (s) changed: 2 words teme temp