The heavy man is sitting on a bus and sleeping.
The bus is void of people
A man on the bus makes it not void of people
exists e1 s1 x1 x2 x3 x4.(n_man(x1) & a_heavy(s1) & Theme(s1,x1) & on(e1,x2) & n_sleeping(x4) & n_bus(x3) & subset_of(x4,x2) & subset_of(x3,x2) & Actor(e1,x1) & v_sit(e1))
exists p1 x1.(n_bus(x1) & exists x2 x3.((x1 = x2) & of(x2,x3) & n_people(x3) & n_void(x2)))