An airplane is flying over the mountain trying to extinguish a fire.
A passenger jet lands on a black runway.
An airplane cannot be flying and landing at the same time. It cannot be over a mountain and on a black runway at the same time.
exists e2 e1 p1 x1 x2 x3.(n_mountain(x2) & over(e1,x2) & Topic(e2,p1) & Actor(e2,x3) & v_try(e2) & exists e3 x4.(Theme(e3,x4) & Actor(e3,x3) & v_extinguish(e3) & n_fire(x4)) & (x2 = x3) & Actor(e1,x1) & v_fly(e1) & n_airplane(x1))
exists s1 x1 x2 x3 x4.(a_topic(x1) & on(x1,x4) & n_runway(x4) & a_black(s1) & Theme(s1,x4) & n_land(x1) & of(x1,x3) & n_jet(x3) & of(x1,x2) & n_passenger(x2))