An airplane is flying over the mountain trying to extinguish a fire.
A machine flying through the air near smoke.
An airplane is a machine, there is air 'over the mountain,' and near fire there is smoke
exists e1 e2 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 e1 x1 x2 x3 x4.(n_air(x3) & a_topic(x1) & through(e1,x3) & near(x3,x4) & n_smoke(x4) & Actor(e1,x2) & v_fly(e1) & (x1 = x2) & n_machine(x1))