Two people are walking around the grounds of a castle.
Two people discuss the problems of the king.
Just because two people are walking around the grounds of a castle does not imply that they discuss the problems of the king.
exists e1 x1 x2 x3.(n_grounds(x2) & around(e1,x2) & of(x2,x3) & n_castle(x3) & Actor(e1,x1) & v_walk(e1) & n_people(x1) & card_eq_2(x1))
exists e1 x1 x2 x3.(n_king(x3) & n_problem(x2) & Theme(e1,x2) & Actor(e1,x1) & v_discuss(e1) & of(x2,x3) & n_people(x1) & card_eq_2(x1))