Question: Context: Armed police were deployed at UCL Hospital, near Warren Street tube station, after reports of a suspect entering the hospital. There was speculation that one of the bombers may have been injured and sought treatment at the hospital. A Scotland Yard spokesman had said "We are dealing with an incident at University College Hospital and we have armed officers deployed there. We cannot go in any further detail at this stage." A UCL spokeswoman confirmed that an email had been sent to staff asking them to be on the lookout for the suspect. At 16:00 a spokesman for the Metropolitan police confirmed that the incident was over, but armed police returned to the hospital 30 minutes later to search the premises. Police have now also confirmed this is unrelated to the explosions.

Generate a hypothesis.
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Answer: Hypothesis: Police report there has been an explosion in the tube station.

Question: Context: The researchers in the latest study fed one group of mice a diet in which 60 percent of calories came from fat. The diet started when the mice, all males, were 1 year old, which is middle-age in mouse longevity. As expected, the mice soon developed signs of impending diabetes, with grossly enlarged livers, and started to die much sooner than mice fed a standard diet.

Generate a hypothesis.
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Answer: Hypothesis: At the age of one year, male mice were fed with a diet in which 60 percent of calories came from fat.

Question: Context: There is growing evidence that magnesium may be an important factor in the qualitative changes of the bone matrix that determine bone fragility.

Generate a hypothesis.
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Answer: Hypothesis: Dietary intake of magnesium prevents osteoporosis.

Question: Context: At the police-training center in Waipahu, 17 members of the Honolulu Police Department's recruit class practiced driving on this training course on Friday. It will be the last recruit class for a while. Another class set to begin next week has been postponed and a second recruit class scheduled for July will also likely be put off to save money. "We're going to just delay it for now until the budget situation clears up a little bit more," Honolulu Mayor Mufi Hannemann said.

Generate a hypothesis.
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Answer:
Hypothesis: Mufi Hannemann is the mayor of Honolulu.