Two children wearing hats hang onto to bamboo trees.
The children are friends.
Children are not necessarily friends.
exists e1 e2 s1 x1 x2 x3 x4 x5 x6.(a_topic(x1) & Theme(e2,x3) & Actor(e2,x2) & v_wear(e2) & onto(e1,x5) & n_tree(x5) & of(x5,x6) & n_bamboo(x6) & a_to(s1) & Theme(s1,x5) & Actor(e1,x4) & v_hang(e1) & (x3 = x4) & n_hat(x3) & (x1 = x2) & n_child(x1) & card_eq_2(x1))
exists p1 x1.(n_child(x1) & exists x2.((x1 = x2) & n_friend(x2)))