A man and a dog are in a canoe on the water.
A man and his pet are in a speed boat.
A canoe is not a speed boat.
exists p1 x1 x2 x3 x5.(n_water(x5) & exists x4.(in(x1,x4) & on(x4,x5) & n_canoe(x4)) & subset_of(x3,x1) & n_dog(x3) & subset_of(x2,x1) & n_man(x2))
exists p1 x1 x2 x3.(exists x4 x5.(in(x1,x4) & n_boat(x4) & of(x4,x5) & n_speed(x5)) & subset_of(x3,x1) & n_pet(x3) & of(x3,x2) & n_male(x2) & subset_of(x2,x1) & n_man(x2))