A little boy underwater in a pool, holding a plastic dinosaur.
The toy is waterproof.
Not all plastic dinosaurs are waterproof.
exists e1 s1 x1 x2 x3 x4 x5 x6.(a_topic(x1) & in(x1,x3) & Theme(e1,x5) & Actor(e1,x4) & v_hold(e1) & n_dinosaur(x5) & of(x5,x6) & n_plastic(x6) & (x3 = x4) & n_pool(x3) & n_underwater(x1) & of(x1,x2) & n_boy(x2) & a_little(s1) & Theme(s1,x1))
exists s1 x1.(n_toy(x1) & Theme(s1,x1) & a_waterproof(s1))