Two guys playing football on a campus green.
They are eating fried fish on the boat
The people cannot be simultaneously eating on a boat if they are playing football on a campus green.
exists e1 x1 x2 x3 x4 x5.(a_topic(x1) & on(e1,x4) & n_green(x4) & of(x4,x5) & n_campus(x5) & Theme(e1,x3) & Actor(e1,x2) & v_play(e1) & n_football(x3) & (x1 = x2) & n_guy(x1) & card_eq_2(x1))
exists e1 s1 x1 x2 x3.(n_boat(x3) & n_thing(x1) & Theme(e1,x2) & Actor(e1,x1) & v_eat(e1) & on(x2,x3) & n_fish(x2) & a_fried(s1) & Theme(s1,x2))