Here is a picture of a people in a sports stadium.
A crowd is watching a sporting event.
Just because people are in a sports stadium doesn't imply watching a sporting event.
exists s1 x1 x2 x3 x4.(Theme(s1,x1) & a_here(s1) & of(x1,x2) & in(x2,x3) & n_stadium(x3) & of(x3,x4) & n_sport(x4) & n_people(x2) & n_picture(x1))
exists e1 x1 x2 x3.(Theme(e1,x2) & Actor(e1,x1) & v_watch(e1) & n_event(x2) & of(x2,x3) & n_sporting(x3) & n_crowd(x1))