A man is climbing on a metal support in the bleachers of a large arena, at a crowded sporting event.
There is no one climbing the metal support in the bleachers.
If a man is climbing the bleachers then it can't also be true that no one is climbing.
exists e1 s1 s2 x1 x2 x3 x4 x5 x6 x7.(n_bleacher(x4) & at(e1,x6) & n_event(x6) & of(x6,x7) & n_sporting(x7) & a_crowded(s2) & Theme(s2,x6) & in(e1,x4) & of(x4,x5) & n_arena(x5) & a_large(s1) & Theme(s1,x5) & on(e1,x2) & n_support(x2) & of(x2,x3) & n_metal(x3) & Actor(e1,x1) & v_climb(e1) & n_man(x1))
exists p1 x1 x4 x5 x6.(n_bleacher(x6) & n_support(x4) & of(x4,x5) & n_metal(x5) & -exists e1 x2 x3.((x1 = x2) & in(e1,x6) & Theme(e1,x4) & Actor(e1,x3) & v_climb(e1) & (x2 = x3) & n_one(x2)))