A man wearing a white hard hat is walking in water.
A girl frolics in the meadow.
A girl is not a man. The man walking in the water is not the same as the girl frolics in the meadow.
exists e1 e2 s1 s2 x1 x2 x3 x4.(in(e2,x4) & n_water(x4) & Actor(e2,x1) & v_walk(e2) & Theme(e1,x3) & Actor(e1,x2) & v_wear(e1) & n_hat(x3) & a_hard(s2) & Theme(s2,x3) & a_white(s1) & Theme(s1,x3) & (x1 = x2) & n_man(x1))
exists x1 x2 x3.(n_meadow(x3) & a_topic(x1) & in(x1,x3) & n_frolic(x1) & of(x1,x2) & n_girl(x2))