Question: Amtrak's headquarters provides service to which two rail lines in Virginia?
Sentence (from "Virginia Railway Express"): The Virginia Railway Express (VRE) (reporting mark VREX) is a regional/commuter rail service that connects the Northern Virginia suburbs to Union Station in Washington, D.C., via two lines: the Fredericksburg Line from Fredericksburg, Virginia, and the Manassas Line from Broad Run/Airport station in Bristow, Virginia.
Relevant evidence: Yes