There is an old style motorcycle by the field.
The bike is on fire.
The bike cannot simultaneously be by a field and on fire
exists p1 x1 x4.(n_field(x4) & exists s1 x2 x3.((x1 = x2) & by(x2,x4) & Time(x2,x3) & n_motorcycle(x3) & n_style(x2) & a_old(s1) & Theme(s1,x2)))
exists p1 x1.(n_bike(x1) & exists x2.(on(x1,x2) & n_fire(x2)))