2 · Nature
25 · earth, world as celestial body
25G · plants; vegetation
25G4 · plants and herbs
25G4(...) · plants and herbs (with NAME)
25G4(IVY) · plants and herbs: ivy
25G4(IVY)(+3) · plants and herbs: ivy (+ characteristics of plant growth)
25G4(IVY)(+39) ·
plants and herbs: ivy (+ other characteristics of plant growth)