a seated person with a dog in his lap
A person sits with a raccoon on their lap.
a dog and a raccoon are not the same animal.
exists e1 x1 x2 x3.(a_topic(x1) & with(x1,x2) & in(x2,x3) & n_lap(x3) & of(x3,x1) & n_male(x1) & n_dog(x2) & n_person(x1) & Theme(e1,x1) & v_seat(e1))
exists e1 x1 x2 x3.(with(e1,x2) & on(x2,x3) & n_lap(x3) & of(x3,x1) & n_thing(x1) & n_raccoon(x2) & Actor(e1,x1) & v_sit(e1) & n_person(x1))