People are seated outdoors to see someone on stage.
zebra runs fast
People and Zebras are not the same.  One cannot be seated outdoors and running fast simultaneously
exists e1 p1 x1 x2 x3.(Topic(e1,p1) & exists e2 x4 x5.(on(e2,x5) & n_stage(x5) & Theme(e2,x4) & Actor(e2,x1) & v_see(e2) & n_person(x4)) & Recipient(e1,x3) & Theme(e1,x2) & v_seat(e1) & n_outdoors(x3) & n_people(x2) & n_people(x1))
exists s1 x1 x2.(Theme(s1,x1) & a_fast(s1) & n_run(x1) & of(x1,x2) & n_zebra(x2))