Question: While the Genesee River is a tributary of Lake Ontario, Schuylkill Canal is a commercial waterway in and along which river?
Sentence (from "Schuylkill Canal"): At the time, the river was the least expensive and most efficient method of transporting bulk cargo, and the eastern seaboard cities of the U.S. were experiencing an energy crisis due to over forestation.
Relevant evidence: No