The young girl happily plays in the tree.
The girl is in a tree.
plays in the tree requires the girl be in the tree
exists e1 s1 s2 x1 x2.(n_tree(x2) & n_girl(x1) & a_young(s1) & Theme(s1,x1) & a_happily(s2) & Manner(e1,s2) & in(e1,x2) & Actor(e1,x1) & v_play(e1))
exists p1 x1.(n_girl(x1) & exists x2.(in(x1,x2) & n_tree(x2)))