A man and his child sitting on the ground.
A man is taking his dog to the vet.
The man and his child are not the same as the man his dog.
exists e1 s1 x1 x2 x3 x4.(n_ground(x4) & a_topic(s1) & subset_of(x2,s1) & on(e1,x4) & Actor(e1,x3) & v_sit(e1) & (x2 = x3) & n_child(x2) & of(x2,x1) & n_male(x1) & subset_of(x1,s1) & n_man(x1))
exists e1 x1 x2 x3.(n_vet(x3) & to(e1,x3) & Theme(e1,x2) & Actor(e1,x1) & v_take(e1) & n_dog(x2) & of(x2,x1) & n_male(x1) & n_man(x1))