Two young boys play near in the sand near the water on the beach.
Two boys are inside the house.
The boys can't be inside while on the beach.
exists s1 s2 x1 x2 x3 x4 x5 x6.(n_beach(x6) & n_water(x5) & n_sand(x4) & a_topic(x1) & on(x1,x6) & near(x1,x5) & in(s2,x4) & Theme(s2,x3) & a_near(s2) & (x1 = x3) & n_play(x1) & of(x1,x2) & n_boy(x2) & a_young(s1) & Theme(s1,x1) & card_eq_2(x1))
exists p1 x1 x2.(n_house(x2) & inside(x1,x2) & n_boy(x1) & card_eq_2(x1))