A woman in a white shirt and pink skirt is about to hit a tennis ball.
A woman exercising
A woman about to hit a tennis ball is not always exercising.
exists p1 s1 s2 s3 x1 x2 x3 x4.(Topic(s3,p1) & Actor(s3,x1) & a_about(s3) & exists e1 x5 x6.(Theme(e1,x5) & Actor(e1,x1) & v_hit(e1) & n_ball(x5) & of(x5,x6) & n_tennis(x6)) & in(x1,x2) & n_skirt(x4) & a_pink(s2) & Theme(s2,x4) & n_shirt(x3) & subset_of(x4,x2) & subset_of(x3,x2) & a_white(s1) & Theme(s1,x2) & n_woman(x1))
exists e1 x1 x2.(a_topic(x1) & Actor(e1,x2) & v_exercise(e1) & (x1 = x2) & n_woman(x1))