A man dressed in red is skiing in the snow near a tree.
A man is taking a trolley ride.
One cannot be skiing in the snow and taking a trolley ride simultaneously.
exists e2 e1 x1 x2 x3 x4 x5.(n_snow(x4) & in(e2,x4) & near(x4,x5) & n_tree(x5) & Actor(e2,x1) & v_ski(e2) & in(e1,x3) & n_red(x3) & Theme(e1,x2) & v_dress(e1) & (x1 = x2) & n_man(x1))
exists e1 x1 x2 x3.(Theme(e1,x2) & Actor(e1,x1) & v_take(e1) & n_ride(x2) & of(x2,x3) & n_trolley(x3) & n_man(x1))