The two greyhounds are racing around a corner.
Two dogs chase a ball around the corner.
Racing around a corner does not necessarily mean chase a ball.
exists e1 x1 x2.(n_greyhound(x1) & card_eq_2(x1) & around(e1,x2) & n_corner(x2) & Actor(e1,x1) & v_race(e1))
exists e1 x1 x2 x3.(n_corner(x3) & around(e1,x3) & Theme(e1,x2) & Actor(e1,x1) & v_chase(e1) & n_ball(x2) & n_dog(x1) & card_eq_2(x1))