Children posing in a tree
Children in a tree.
The words children and tree are repeated in both sentences.
exists e1 x1 x2.(ne_nam_children(x1) & in(e1,x2) & n_tree(x2) & Actor(e1,x1) & v_pose(e1))
exists x1 x2.(a_topic(x1) & in(x1,x2) & n_tree(x2) & n_child(x1))