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.

proper question: Aside from 113 research institutes, how many research centers does the U of C operate?
disfluent question: Aside from 12 ummm I mean 113 research institutes, how many research centers does the U of C operate?
context: The university operates 12 research institutes and 113 research centers on campus. Among these are the Oriental Institutea museum and research center for Near Eastern studies owned and operated by the universityand a number of National Resource Centers, including the Center for Middle Eastern Studies. Chicago also operates or is affiliated with a number of research institutions apart from the university proper. The university partially manages Argonne National Laboratory, part of the United States Department of Energy's national laboratory system, and has a joint stake in Fermilab, a nearby particle physics laboratory, as well as a stake in the Apache Point Observatory in Sunspot, New Mexico. Faculty and students at the adjacent Toyota Technological Institute at Chicago collaborate with the university, In 2013, the university announced that it was affiliating the formerly independent Marine Biological Laboratory in Woods Hole, Mass. Although formally unrelated, the National Opinion Research Center is located on Chicago's campus.
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proper question: Between which years did the Mediterranean Sea flow into the Tethys sea?
disfluent question: Between which years did the Triassic Period flow into the Tethys sea no the Mediterranean Sea?
context: In southern Europe, the stage was set in the Triassic Period of the Mesozoic Era, with the opening of the Tethys Ocean, between the Eurasian and African tectonic plates, between about 240 MBP and 220 MBP (million years before present). The present Mediterranean Sea descends from this somewhat larger Tethys sea. At about 180 MBP, in the Jurassic Period, the two plates reversed direction and began to compress the Tethys floor, causing it to be subducted under Eurasia and pushing up the edge of the latter plate in the Alpine Orogeny of the Oligocene and Miocene Periods. Several microplates were caught in the squeeze and rotated or were pushed laterally, generating the individual features of Mediterranean geography: Iberia pushed up the Pyrenees; Italy, the Alps, and Anatolia, moving west, the mountains of Greece and the islands. The compression and orogeny continue today, as shown by the ongoing raising of the mountains a small amount each year and the active volcanoes.
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proper question: What is an example of a less sophisticated defense mechanism that jawed vertebrates have?
disfluent question: Who is or no make what is an example of a less sophisticated defense mechanism that jawed vertebrates have?
context: Pathogens can rapidly evolve and adapt, and thereby avoid detection and neutralization by the immune system; however, multiple defense mechanisms have also evolved to recognize and neutralize pathogens. Even simple unicellular organisms such as bacteria possess a rudimentary immune system, in the form of enzymes that protect against bacteriophage infections. Other basic immune mechanisms evolved in ancient eukaryotes and remain in their modern descendants, such as plants and invertebrates. These mechanisms include phagocytosis, antimicrobial peptides called defensins, and the complement system. Jawed vertebrates, including humans, have even more sophisticated defense mechanisms, including the ability to adapt over time to recognize specific pathogens more efficiently. Adaptive (or acquired) immunity creates immunological memory after an initial response to a specific pathogen, leading to an enhanced response to subsequent encounters with that same pathogen. This process of acquired immunity is the basis of vaccination.
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