Indication: Ben (the root of the tree is indicated by the horizontal line under the wood) and (the armpit takes precedence, and those two points indicate the human armpit)

Understanding: Look at the forest (one tree is a tree, more than two are forests) (cover the sun above your eyes with your hand and know you are looking)

Shape and sound: analysis of river copper locust (shape and sound can be divided)

If it is unknown, you can ask.