I was given the following question on an assignment and do not understand the wording of it. Can someone please clarify or simplify it so that I can attempt to solve it?

Let T1 = (V1, E1), T2 = (V2, E2) be two trees where |E1|= 17 and |V2| = 2|V1|. Determine |V1|, |V2|, and |E2|.

Thanks!