People are visiting an old castle or fort.
People are kicking around the debris of an old castle
The people are either at a castle OR a fort, and they are either visiting or kicking around debris.
exists e1 x1 x2.(Theme(e1,x2) & Actor(e1,x1) & v_visit(e1) & (exists s1.(n_castle(x2) & a_old(s1) & Theme(s1,x2)) | n_fort(x2)) & n_people(x1))
exists e1 s1 x1 x2 x3.(n_debris(x2) & around(e1,x2) & of(x2,x3) & n_castle(x3) & a_old(s1) & Theme(s1,x3) & Actor(e1,x1) & v_kick(e1) & n_people(x1))