Use a disfluent question or a proper question and find the answer to the question based on the given context or return None if an answer can't be found. A disfluent question is a question that has some interruptions in it while framing. A proper question is the correct form of the question without any disfluency.
--------
Question: proper question: A forced trade agreement between two countries is not an example of what?
disfluent question: A forced trade agreement between two countries is not a power er instead an example of what?
context: The definition of imperialism has not been finalized for centuries and was confusedly seen to represent the policies of major powers, or simply, general-purpose aggressiveness. Further on, some writers[who?] used the term imperialism, in slightly more discriminating fashion, to mean all kinds of domination or control by a group of people over another. To clear out this confusion about the definition of imperialism one could speak of formal and informal imperialism, the first meaning physical control or full-fledged colonial rule while the second implied less direct rule though still containing perceivable kinds of dominance. Informal rule is generally less costly than taking over territories formally. This is because, with informal rule, the control is spread more subtly through technological superiority, enforcing land officials into large debts that cannot be repaid, ownership of private industries thus expanding the controlled area, or having countries agree to uneven trade agreements forcefully.

Answer: None

Question: proper question: Minister Robert Dinwiddie had an investment in what significant company?
disfluent question: Minister Robert Dinwiddie claimed no had an investment in what significant company?
context: Governor Robert Dinwiddie of Virginia was an investor in the Ohio Company, which stood to lose money if the French held their claim. To counter the French military presence in Ohio, in October 1753 Dinwiddie ordered the 21-year-old Major George Washington (whose brother was another Ohio Company investor) of the Virginia Regiment to warn the French to leave Virginia territory. Washington left with a small party, picking up along the way Jacob Van Braam as an interpreter; Christopher Gist, a company surveyor working in the area; and a few Mingo led by Tanaghrisson. On December 12, Washington and his men reached Fort Le Boeuf.

Answer: None

Question: proper question: In what year did Jani Beg become leader of the Mongol army?
disfluent question: When did no in what year did Jani Beg become leader of the Mongol army?
context: Plague was reportedly first introduced to Europe via Genoese traders at the port city of Kaffa in the Crimea in 1347. After a protracted siege, during which the Mongol army under Jani Beg was suffering from the disease, the army catapulted the infected corpses over the city walls of Kaffa to infect the inhabitants. The Genoese traders fled, taking the plague by ship into Sicily and the south of Europe, whence it spread north. Whether or not this hypothesis is accurate, it is clear that several existing conditions such as war, famine, and weather contributed to the severity of the Black Death.

Answer:
None