instruction:
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: In what century did the marine bays join the sea?
disfluent question: In what year did the marine bays join the sea no in what century?
context: The hydrography of the current delta is characterized by the delta's main arms, disconnected arms (Hollandse IJssel, Linge, Vecht, etc.) and smaller rivers and streams. Many rivers have been closed (dammed) and now serve as drainage channels for the numerous polders. The construction of Delta Works changed the Delta in the second half of the 20th Century fundamentally. Currently Rhine water runs into the sea, or into former marine bays now separated from the sea, in five places, namely at the mouths of the Nieuwe Merwede, Nieuwe Waterway (Nieuwe Maas), Dordtse Kil, Spui and IJssel.
answer:
None

question:
proper question: What did Ghandi decide to use so that everyone would have the same deal?
disfluent question: When did What did Ghandi decide to use so that everyone would have the same deal?
context: Sometimes the prosecution proposes a plea bargain to civil disobedients, as in the case of the Camden 28, in which the defendants were offered an opportunity to plead guilty to one misdemeanor count and receive no jail time. In some mass arrest situations, the activists decide to use solidarity tactics to secure the same plea bargain for everyone. But some activists have opted to enter a blind plea, pleading guilty without any plea agreement in place. Mohandas Gandhi pleaded guilty and told the court, I am here to . . . submit cheerfully to the highest penalty that can be inflicted upon me for what in law is a deliberate crime and what appears to me to be the highest duty of a citizen.
answer:
None

question:
proper question: What philosophies underlay Chinese medicine?
disfluent question: What about Western medicine, no actualy tell me what philosophies underlay Chinese medicine?
context: Western medicine was also practiced in China by the Nestorian Christians of the Yuan court, where it was sometimes labeled as huihui or Muslim medicine. The Nestorian physician Jesus the Interpreter founded the Office of Western Medicine in 1263 during the reign of Kublai. Huihui doctors staffed at two imperial hospitals were responsible for treating the imperial family and members of the court. Chinese physicians opposed Western medicine because its humoral system contradicted the yin-yang and wuxing philosophy underlying traditional Chinese medicine. No Chinese translation of Western medical works is known, but it is possible that the Chinese had access to Avicenna's The Canon of Medicine.
answer:
yin-yang and wuxing philosophy