Two children lay in the grass.
Two children were outside.
It was mentioned that two children were laying in the grass, but not outside.
exists e1 x1 x2.(n_grass(x2) & in(e1,x2) & Actor(e1,x1) & v_lay(e1) & n_child(x1) & card_eq_2(x1))
exists s1 x1.(Theme(s1,x1) & a_outside(s1) & n_child(x1) & card_eq_2(x1))