Six boys, one colored, are on the beach where they have dug themselves in holes
some boys are building sand castles.
Boys does not build sand castles each time they have dug themselves in holes.
exists e1 p1 x1 x2 x3 x4 x5.(n_group(x5) & n_thing(x4) & n_beach(x4) & exists p2.(on(x1,x4) & exists e2 x6.(in(e2,x6) & n_hole(x6) & Theme(e2,x5) & Actor(e2,x4) & v_dig(e2)) & where(x4,p2)) & rel(x1,x2) & Theme(e1,x3) & v_color(e1) & (x2 = x3) & n_thing(x2) & card_eq_1(x2) & n_boy(x1) & card_eq_6(x1))
exists e1 x1 x2 x3.(Theme(e1,x2) & Actor(e1,x1) & v_build(e1) & n_castle(x2) & of(x2,x3) & n_sand(x3) & n_boy(x1))