The crowd is watching a football game.
the crowd is at a baseball game
They can't be at both a football game and a baseball game.
exists e1 x1 x2 x3.(n_crowd(x1) & Theme(e1,x2) & Actor(e1,x1) & v_watch(e1) & n_game(x2) & of(x2,x3) & n_football(x3))
exists p1 x1.(n_crowd(x1) & exists x2 x3.(at(x1,x2) & n_game(x2) & of(x2,x3) & n_baseball(x3)))