A man walks on a ropes course in a helmet.
The man is walking across the Grand Canyon.
You can not infer he is at the Grand Canyon.
exists e1 x1 x2 x3 x4.(on(e1,x2) & in(x2,x4) & n_helmet(x4) & n_course(x2) & of(x2,x3) & n_rope(x3) & Actor(e1,x1) & v_walk(e1) & n_man(x1))
exists e1 x1 x2 x3.(ne_geo_canyon(x2) & (x2 = x3) & ne_geo_grand(x3) & n_man(x1) & across(e1,x2) & Actor(e1,x1) & v_walk(e1))