Children in a green classroom are raising their hands.
Children are outside playing on the slide.
Children cannot be in a classroom and playing outside simultaneously.
exists e1 s1 x1 x2 x3.(Theme(e1,x3) & Actor(e1,x1) & v_raise(e1) & n_hand(x3) & of(x3,x1) & n_thing(x1) & in(x1,x2) & n_classroom(x2) & a_green(s1) & Theme(s1,x2) & n_child(x1))
exists p1 x1 x3.(n_slide(x3) & exists s1 x2.((x1 = x2) & on(x2,x3) & n_playing(x2) & a_outside(s1) & Theme(s1,x2)) & n_child(x1))