A family is walking through a building and a man sits on a ledge inside the building.
The family were on a plane to Disney World.
The family can not be walking through a building and on a plane at the same time.
exists e1 e2 x1 x2 x3 x4.(inside(e2,x2) & n_building(x2) & n_building(x2) & on(e2,x4) & n_ledge(x4) & Actor(e2,x3) & v_sit(e2) & n_man(x3) & through(e1,x2) & Actor(e1,x1) & v_walk(e1) & n_family(x1))
exists p1 x1 x2 x3.(ne_org_world(x2) & (x2 = x3) & ne_org_disney(x3) & n_family(x1) & to(p1,x2) & exists x4.(on(x1,x4) & n_plane(x4)))