Children in a green classroom are raising their hands.
Kids are raising their hands in class.
If the children are in a classroom, they are most likely in class.
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 e1 x1 x2 x3.(in(e1,x3) & n_class(x3) & Theme(e1,x2) & Actor(e1,x1) & v_raise(e1) & n_hand(x2) & of(x2,x1) & n_thing(x1) & n_kid(x1))