Two children, one of which is holding a stick, are standing on the beach as the sun begins to set.
Two children are swimming.
The children cannot be simultaneously standing and swimming.
exists e1 e2 e3 p1 x1 x2 x3 x4 x5 x6 x7.(n_sun(x7) & n_beach(x6) & as(e3,x7) & on(e3,x6) & Actor(e3,x5) & v_stand(e3) & of(x5,x2) & n_one(x5) & Theme(e2,x4) & Actor(e2,x3) & v_hold(e2) & n_stick(x4) & of(x3,x2) & n_one(x3) & Topic(e1,p1) & Actor(e1,x1) & v_begin(e1) & exists e4 x8.(Theme(e4,x8) & Actor(e4,x1) & v_set(e4) & n_thing(x8)) & (x1 = x2) & n_child(x1) & card_eq_2(x1))
exists p1 x1.(exists x2.((x1 = x2) & n_swimming(x2)) & n_child(x1) & card_eq_2(x1))