Question: Of which river is the body of water, that marks the change from Grand Street to Grand Avenue, a tributary ?
Sentence (from "Grand Street and Grand Avenue"): Originating in Williamsburg, Brooklyn, Grand Street runs roughly northeast until crossing Newtown Creek into Queens, whereupon Grand Street becomes Grand Avenue, continuing through Maspeth where it is a main shopping street, until reaching its northern end at Queens Boulevard in Elmhurst.
Relevant evidence: Yes