A young man throws something in the water.
The man is sleeping inside the castle.
The man throws something in the water which means that he's awake, and can't be sleeping inside the castle.
exists e1 s1 x1 x2 x3.(n_water(x3) & Theme(e1,x2) & Actor(e1,x1) & v_throw(e1) & in(x2,x3) & n_thing(x2) & n_man(x1) & a_young(s1) & Theme(s1,x1))
exists e1 x1 x2.(n_castle(x2) & n_man(x1) & inside(e1,x2) & Actor(e1,x1) & v_sleep(e1))