A orchestra performing a piece.
Someone is playing football.
An orchestra, made up of many people, cannot be performing music while simultaneously being one person playing football
exists e1 x1 x2 x3.(a_topic(x1) & Theme(e1,x3) & Actor(e1,x2) & v_perform(e1) & n_piece(x3) & (x1 = x2) & n_orchestra(x1))
exists e1 x1 x2.(Theme(e1,x2) & Actor(e1,x1) & v_play(e1) & n_football(x2) & n_person(x1))