A man is looking at a small plane flying in the air.
The person is looking at a flower.
Either the man is looking at a small plane, or he is looking at a flower, not both.
exists e1 e2 s1 x1 x2 x3 x4.(n_air(x4) & at(e1,x2) & in(e2,x4) & Actor(e2,x3) & v_fly(e2) & (x2 = x3) & n_plane(x2) & a_small(s1) & Theme(s1,x2) & Actor(e1,x1) & v_look(e1) & n_man(x1))
exists e1 x1 x2.(n_person(x1) & at(e1,x2) & n_flower(x2) & Actor(e1,x1) & v_look(e1))