A person does a trick on a bike.
The person is is driving a car.
A person cannot drive a car and do a bike trick at the same time.
exists e1 x1 x2 x3.(on(e1,x3) & n_bike(x3) & Theme(e1,x2) & Actor(e1,x1) & v_do(e1) & n_trick(x2) & n_person(x1))
exists e2 e1 x1 x2 x3.(n_person(x1) & Theme(e2,x3) & Actor(e2,x1) & v_drive(e2) & n_car(x3) & Actor(e1,x2) & v_be(e1) & (x1 = x2))