Based on the information present in the given passage, you need to write a correct answer to the given question. A correct answer is one that correctly and completely answers the question. Do not write answers that address the question partially or incorrectly. The correct answer must be contained in the given paragraph.

Ex Input:
Paragraph- Sent 1: Hurlburt Field, Florida (CNN) -- An Air Force CV-22 Osprey crashed Wednesday during a routine training mission north of Navarre, Florida, injuring five crew members aboard, a military official said.
Sent 2: The crash occurred about 6:45 p.m.
Sent 3: at Hurlburt Field's Eglin Range, said Amy Nicholson, chief of public affairs at the airfield.
Sent 4: The five injured crew members were taken to an area hospital, Nicholson said.
Sent 5: The extent of their injuries was not immediately known.
Sent 6: The cause of the accident is under investigation, she said.
Sent 7: The Osprey was assigned to the 1st Special Operations Wing, the Air Force said.
Sent 8: The tilt-rotor aircraft can fly like an airplane and land like a helicopter.
Sent 9: The Army began developing the Osprey in 1982, though the program was nearly scrapped in 1989 when then-Secretary of Defense Dick Cheney sought to cancel it because of ballooning costs.
Sent 10: Questions were raised about the safety of the Osprey after two crashes, including one in 1992 at a Marine Corps air base in Virginia that killed the crew.
Sent 11: In late 2000, the Marine Corps grounded the Osprey fleet after two crashes -- one in Arizona that killed four crew members and 15 passengers, and another in North Carolina that killed the crew.
Sent 12: A redesign was ordered on the Osprey, and it resumed flights in 2002.
Sent 13: The Air Force began using Ospreys in 2008 after testing the aircraft in 2006.
Sent 14: They were first deployed by the Marines in Iraq in 2007 after 18 years and $20 billion in development.
Question: How many crashes was the CV-22 involved in?.

Ex Output:
4.

Ex Input:
Paragraph- Sent 1: Albert Bandura OC (/baen'dU@r@/; born December 4, 1925) is a psychologist who is the David Starr Jordan Professor Emeritus of Social Science in Psychology at Stanford University.
Sent 2: For almost six decades, he has been responsible for contributions to the field of education and to many fields of psychology, including social cognitive theory, therapy and personality psychology, and was also influential in the transition between behaviorism and cognitive psychology.
Sent 3: He is known as the originator of social learning theory and the theoretical construct of self-efficacy, and is also responsible for the influential 1961 Bobo doll experiment.
Sent 4: Social learning theory is how people learn through observing others.
Sent 5: An example of social learning theory would be the students imitating the teacher.
Sent 6: Self-efficacy is "The belief in one's capabilities to organize and execute the courses of action required to manage prospective situations."Sent 7: To paraphrase, self-efficiacy is believing in yourself to take action.
Sent 8: The Bobo Doll Experiment was how Albert Bandura studied aggression and non-aggression in children.
Sent 9: A 2002 survey ranked Bandura as the fourth most-frequently cited psychologist of all time, behind B. F. Skinner, Sigmund Freud, and Jean Piaget, and as the most cited living one.
Sent 10: Bandura is widely described as the greatest living psychologist, and as one of the most influential psychologists of all time.
Sent 11: In 1974 Bandura was elected to be the Eighty-Second President of the American Psychological Association (APA).
Sent 12: He was one of the youngest president-elects in the history of the APA at the age of 48.
Sent 13: Bandura served as a member of the APA Board of Scientific Affairs from 1968 to 1970 and is well known as a member of the editorial board of nine psychology journals including the Journal of Personality and Social Psychology from 1963 to 1972.
Sent 14: At the age of 82, Bandura was awarded the Grawemeyer Award for psychology.
Question: In which year did Albert Bandura study aggression in children?.

Ex Output:
1961.

Ex Input:
Paragraph- Sent 1: American Airlines Flight 11: FAA Awareness.
Sent 2: Although the Boston Center air traffic controller realized at an early stage that there was something wrong with American 11, he did not immediately interpret the plane's failure to respond as a sign that it had been hijacked.
Sent 3: At 8:14, when the flight failed to heed his instruction to climb to 35,000 feet, the controller repeatedly tried to raise the flight.
Sent 4: He reached out to the pilot on the emergency frequency.
Sent 5: Though there was no response, he kept trying to contact the aircraft.
Sent 6: At 8:21, American 11 turned off its transponder, immediately degrading the information available about the aircraft.
Sent 7: The controller told his supervisor that he thought something was seriously wrong with the plane, although neither suspected a hijacking.
Sent 8: The supervisor instructed the controller to follow standard procedures for handling a "no radio" aircraft.
Sent 9: The controller checked to see if American Airlines could establish communication with American 11.
Sent 10: He became even more concerned as its route changed, moving into another sector's airspace.
Sent 11: Controllers immediately began to move aircraft out of its path, and asked other aircraft in the vicinity to look for American 11.
Sent 12: At 8:24:38, the following transmission came from American 11: American 11: We have some planes.
Sent 13: Just stay quiet, and you'll be okay.
Sent 14: We are returning to the airport.
Sent 15: The controller only heard something unintelligible; he did not hear the specific words "we have some planes."Sent 16: The next transmission came seconds later: American 11: Nobody move.
Sent 17: Everything will be okay.
Sent 18: If you try to make any moves, you'll endanger yourself and the airplane.
Question: How long between the time the FAA tried contacting the aircraft and the aircraft turning off its transponder (in minutes)?.

Ex Output:
7 minutes.