Several people stroll through a park with many trees.
The trees are very tall.
Not all trees are very tall
exists e1 s1 x1 x2 x3.(through(e1,x2) & with(x2,x3) & n_tree(x3) & n_quantity(x3) & n_park(x2) & Actor(e1,x1) & v_stroll(e1) & n_people(x1) & a_several(s1) & Theme(s1,x1))
exists s1 x1.(n_tree(x1) & r_very(s1) & Theme(s1,x1) & a_tall(s1))