A man climbing a rock wall
A man is sitting under a tree drinking a lemonade.
One can't be climbing a rock wall while sitting under a tree.
exists e1 x1 x2 x3 x4.(a_topic(x1) & Theme(e1,x3) & Actor(e1,x2) & v_climb(e1) & n_wall(x3) & of(x3,x4) & n_rock(x4) & (x1 = x2) & n_man(x1))
exists e1 e2 x1 x2 x3.(for(e1,e2) & Theme(e2,x3) & Actor(e2,x1) & v_drink(e2) & n_lemonade(x3) & under(e1,x2) & n_tree(x2) & Actor(e1,x1) & v_sit(e1) & n_man(x1))