A crowded stadium is full of people watching an event.
A stadium full of people are watching a event.
The sentences are primarily the same, the only change is that in sentence 1, " watching an event " is the descriptive clause describing people, while in sentence 2 " full of people " is a descriptive clause describing the stadium.
exists e1 s1 s2 x1 x2 x3 x4.(of(s2,x2) & Theme(e1,x4) & Actor(e1,x3) & v_watch(e1) & n_event(x4) & (x2 = x3) & n_people(x2) & Theme(s2,x1) & a_full(s2) & n_stadium(x1) & a_crowded(s1) & Theme(s1,x1))
exists e1 s1 x1 x2 x3 x4.(Theme(e1,x4) & Actor(e1,x1) & v_watch(e1) & n_event(x4) & of(s1,x3) & n_people(x3) & Theme(s1,x2) & a_full(s1) & (x1 = x2) & n_stadium(x1))