Title: Military history of the United States.
Question: When was the Vietnam War fought?

Title: Frederic Chopin.
Question: When did Chopin return to Warsaw?

Title: Tuvalu.
Question: By what means does Tuvalu plan to produce 95% of its energy?

Title: New York City.
Question:
In 2005, what percentage of New York residents used mass transit to get to work?