Letter on position 1 (p) changed: 15 words baps caps daps gaps haps japs laps maps naps raps saps taps waps yaps zaps Letter on position 2 (a) changed: 4 words peps pips pops pups Letter on position 3 (p) changed: 13 words pacs pads pahs pais pals pams pans pars pass pats pavs paws pays Letter on position 4 (s) changed: 2 words papa pape