Trees obscure a building to the right.
The trees are taller than the building.
Trees obscuring a building does not necessarily imply that they are taller.
exists e1 x1 x2 x3.(n_right(x3) & ne_nam_trees(x1) & to(e1,x3) & Theme(e1,x2) & Actor(e1,x1) & v_obscure(e1) & n_building(x2))
exists s1 x1 x2.(n_building(x2) & n_tree(x1) & than(s1,x2) & r_more(s1) & Theme(s1,x1) & a_taller(s1))