An adult and a child playing in the water at the beach.
A man is skiing down a slope.
A man cannot be skiing down a slope in the water at the beach.
exists s1 x1 x2 x3 x4 x5.(n_beach(x5) & n_water(x4) & a_topic(s1) & subset_of(x2,s1) & at(x2,x5) & in(x2,x4) & n_playing(x2) & of(x2,x3) & n_child(x3) & subset_of(x1,s1) & n_adult(x1))
exists e1 s1 x1 x2.(a_down(s1) & Manner(e1,s1) & Theme(e1,x2) & Actor(e1,x1) & v_ski(e1) & n_slope(x2) & n_man(x1))