A boy chasing a pigeon on a pier.
The girl was in the car.
It is either a boy or a girl. One cannot chase a pigeon in a car.
exists e1 x1 x2 x3 x4.(a_topic(x1) & on(e1,x4) & n_pier(x4) & Theme(e1,x3) & Actor(e1,x2) & v_chase(e1) & n_pigeon(x3) & (x1 = x2) & n_boy(x1))
exists p1 x1 x2.(n_car(x2) & n_girl(x1) & in(x1,x2))