A young child is petting an animal.
A boy comforts a dog.
Just because it is an animal, it doesn't mean that it is a dog.
exists e1 s1 x1 x2.(Theme(e1,x2) & Actor(e1,x1) & v_pet(e1) & n_animal(x2) & n_child(x1) & a_young(s1) & Theme(s1,x1))
exists e1 x1 x2.(Theme(e1,x2) & Actor(e1,x1) & v_comfort(e1) & n_dog(x2) & n_boy(x1))