A boy on a bike is in midair over a staircase in front of an old-style building in a city.
An old building collapsed on a bike and boy.
The boy cannot be in midair if a building has collapsed on him.
exists p1 x1 x2.(exists s1 x3 x4 x5 x6 x7.(in(x1,x3) & over(x3,x4) & in(x4,x5) & of(x5,x6) & in(x6,x7) & n_city(x7) & n_building(x6) & a_old-style(s1) & Theme(s1,x6) & n_front(x5) & n_staircase(x4) & n_midair(x3)) & on(x1,x2) & n_bike(x2) & n_boy(x1))
exists e1 s1 x1 x2 x3 x4.(on(e1,x2) & subset_of(x4,x2) & n_boy(x4) & subset_of(x3,x2) & n_bike(x3) & Actor(e1,x1) & v_collapse(e1) & n_building(x1) & a_old(s1) & Theme(s1,x1))