A smiling boy floats in a pool.
A smiling boy has his face above water in a pool.
if he floats, it follows that his face is above water.
exists e1 x1 x2 x3.(a_topic(x1) & in(x1,x3) & n_pool(x3) & n_float(x1) & of(x1,x2) & n_boy(x2) & Actor(e1,x1) & v_smile(e1))
exists e1 e2 x1 x2 x3 x4.(in(e2,x4) & n_pool(x4) & Theme(e2,x2) & Actor(e2,x1) & v_have(e2) & above(x2,x3) & n_water(x3) & n_face(x2) & of(x2,x1) & n_male(x1) & n_boy(x1) & Actor(e1,x1) & v_smile(e1))