A happy boy, jumps in the sand.
A boy crying at the game.
A happy boy cannot be crying.
exists s1 x1 x2 x3.(n_sand(x3) & a_topic(x1) & rel(x1,x2) & in(x2,x3) & n_jump(x2) & n_boy(x1) & a_happy(s1) & Theme(s1,x1))
exists e1 x1 x2 x3.(n_game(x3) & a_topic(x1) & at(e1,x3) & Actor(e1,x2) & v_cry(e1) & (x1 = x2) & n_boy(x1))