2 · Nature
25 · earth, world as celestial body
25G · plants; vegetation
25G3 · trees
25G3(...) · trees (with NAME)
25G3(OAK) · trees: oak
25G3(OAK)(+3) · trees: oak (+ characteristics of plant growth)
25G3(OAK)(+34) · trees: oak (+ bearing fruit)
25G3(OAK)(+341) · trees: oak (+ shedding fruit)