Four girls on a beach are playing catch.
A group of girls are standing in line at the post office.
Girls standing in line at the post office cannot simultaneously be on a beach playing catch.
exists e1 x1 x2 x3.(Theme(e1,x3) & Actor(e1,x1) & v_play(e1) & n_catch(x3) & on(x1,x2) & n_beach(x2) & n_girl(x1) & card_eq_4(x1))
exists e1 x1 x2 x3 x4 x5.(n_office(x4) & of(x4,x5) & n_post(x5) & at(e1,x4) & in(e1,x3) & n_line(x3) & Actor(e1,x1) & v_stand(e1) & of(x1,x2) & n_girl(x2) & n_group(x1))