Two children in hats play in an open, rocky field.
The children are at home eating lunch.
The children cannot play in a field and be eating lunch at home simultaneously.
exists e1 s1 s2 s3 x1 x2 x3.(in(e1,x3) & n_field(x3) & a_rocky(s3) & Theme(s3,x3) & a_,(s2) & Theme(s2,x3) & a_open(s1) & Theme(s1,x3) & Actor(e1,x1) & v_play(e1) & in(x1,x2) & n_hat(x2) & n_child(x1) & card_eq_2(x1))
exists p1 x1.(n_child(x1) & exists x2 x3 x4.(at(x1,x2) & n_lunch(x2) & of(x2,x4) & n_eating(x4) & of(x2,x3) & n_home(x3)))