A man rides his motorcycle down the street.
The man is driving a car.
Man cannot be driving a car and motorcycle at same time.
exists e1 x1 x2 x3.(n_street(x3) & Theme(e1,x2) & Actor(e1,x1) & v_ride(e1) & down(x2,x3) & n_motorcycle(x2) & of(x2,x1) & n_male(x1) & n_man(x1))
exists e1 x1 x2.(n_man(x1) & Theme(e1,x2) & Actor(e1,x1) & v_drive(e1) & n_car(x2))