Fans are watching an event in a stadium.
The fans are watching.
Fans are in the stadium who are watching an event
exists e1 x1 x2 x3.(in(e1,x3) & n_stadium(x3) & Theme(e1,x2) & Actor(e1,x1) & v_watch(e1) & n_event(x2) & n_fan(x1))
exists e1 x1.(n_fan(x1) & Actor(e1,x1) & v_watch(e1))