Teenager rides through the forest on his mountain bike.
The teenager is driving a car through the forest.
The teenager can't be on his mountain bike and be driving a car at the same time.
exists e1 x1 x2 x3 x4.(n_bike(x3) & of(x3,x4) & n_mountain(x4) & of(x3,x2) & n_male(x2) & n_forest(x2) & ne_nam_teenager(x1) & on(e1,x3) & through(e1,x2) & Actor(e1,x1) & v_ride(e1))
exists e1 x1 x2 x3.(n_forest(x3) & n_teenager(x1) & through(e1,x3) & Theme(e1,x2) & Actor(e1,x1) & v_drive(e1) & n_car(x2))