Formulate an answer to this elaborate question: The Virginia Rail Express and the Washington Union Station both operate in this city.
----
Answer: Washington, D.C.


Formulate an answer to this elaborate question: What countries did Princess Christina Margarethe of Hesse and Prince Christoph of Hesse family rule over?
----
Answer: Greece and Denmark


Formulate an answer to this elaborate question: Which musician or group is from Ireland, Sam Roberts or Music for Dead Birds?
----
Answer:
Music for Dead Birds