2 · Nature
25 · earth, world as celestial body
25G · plants; vegetation
25G3 · trees
25G3(...) · trees (with NAME)
25G3(WALNUT-TREE) · trees: walnut-tree
25G3(WALNUT-TREE)(+2) · trees: walnut-tree (+ parts of plants)
25G3(WALNUT-TREE)(+27) ·
trees: walnut-tree (+ leaf)