Four girls on a beach are playing catch.
A group of girls are playing with a nerf football.
Girls playing catch are not necessarily playing with a nerf football.
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.(with(e1,x3) & n_football(x3) & of(x3,x4) & n_nerf(x4) & Actor(e1,x1) & v_play(e1) & of(x1,x2) & n_girl(x2) & n_group(x1))