Read the given statements and conclusions carefully. Assuming that the information given in the statements is true, even if it appears to be at variance with commonly known facts, decide which of the given conclusions logically follow(s) from the statements.

Statements:
Some grasses are trees.
Some trees are branches.
Some branches are dogs.

Conclusions:
I. Some grasses are branches.
II. Some trees are dogs.
III. Some grasses are dogs.
IV. Some branches are grasses.