A person biking down the street and carrying groceries.
The person is driving a car.
Person biking - Person driving car - Contradictory
exists e1 e2 x1 x2 x3 x4 x5.(n_street(x3) & a_topic(x1) & Theme(e2,x5) & Actor(e2,x4) & v_carry(e2) & n_grocery(x5) & (x1 = x4) & down(e1,x3) & Actor(e1,x2) & v_bike(e1) & (x1 = x2) & n_person(x1))
exists e1 x1 x2.(n_person(x1) & Theme(e1,x2) & Actor(e1,x1) & v_drive(e1) & n_car(x2))