You need to read the given passage and construct a question about the information present in the passage. The question should be answerable from the passage. Most importantly, only those questions are allowed whose answers cannot be determined from a single sentence. Do not generate questions that require only a single sentence to answer. Instead, try to combine two sentences and create a question from that combination. Do not create open-ended questions, i.e., the answers to them cannot be found precisely from the information provided in the passage.

[Q]: Paragraph- Sent 1: About this time, Card, the lead Secret Service agent, the President's military aide, and the pilot were conferring on a possible destination for Air Force One.
Sent 2: The Secret Service agent felt strongly that the situation in Washington was too unstable for the President to return there, and Card agreed.
Sent 3: The President strongly wanted to return to Washington and only grudgingly agreed to go elsewhere.
Sent 4: The issue was still undecided when the President conferred with the Vice President at about the time Air Force One was taking off.
Sent 5: The Vice President recalled urging the President not to return to Washington.
Sent 6: Air Force One departed at about 9:54 without any fixed destination.
Sent 7: The objective was to get up in the air-as fast and as high as possible-and then decide where to go.
Sent 8: At 9:33, the tower supervisor at Reagan National Airport picked up a hotline to the Secret Service and told the Service's operations center that "an aircraft [is] coming at you and not talking with us."Sent 9: This was the first specific report to the Secret Service of a direct threat to the White House.
Sent 10: No move was made to evacuate the Vice President at this time.
Sent 11: As the officer who took the call explained, "[I was] about to push the alert button when the tower advised that the aircraft was turning south and approaching Reagan National Airport."Sent 12: American 77 began turning south, away from the White House, at 9:34.
Sent 13: It continued heading south for roughly a minute, before turning west and beginning to circle back.
Sent 14: This news prompted the Secret Service to order the immediate evacuation of the Vice President just before 9:36.
Sent 15: Agents propelled him out of his chair and told him he had to get to the bunker.
Sent 16: The Vice President entered the underground tunnel leading to the shelter at 9:37.
Sent 17: Once inside, Vice President Cheney and the agents paused in an area of the tunnel that had a secure phone, a bench, and television.
Sent 18: The Vice President asked to speak to the President, but it took time for the call to be connected.
[A]: how much time elapsed between the time that the tower supervisor at reagan national airport contacted the secret service and the time that american 77 started turning south?

[Q]: Paragraph- Sent 1: Within three months of his marriage, Durer left for Italy, alone, perhaps stimulated by an outbreak of plague in Nuremberg.
Sent 2: He made watercolour sketches as he traveled over the Alps.
Sent 3: Some have survived and others may be deduced from accurate landscapes of real places in his later work, for example his engraving Nemesis.
Sent 4: In Italy, he went to Venice to study its more advanced artistic world.
Sent 5: Through Wolgemut's tutelage, Durer had learned how to make prints in drypoint and design woodcuts in the German style, based on the works of Martin Schongauer and the Housebook Master.
Sent 6: He also would have had access to some Italian works in Germany, but the two visits he made to Italy had an enormous influence on him.
Sent 7: He wrote that Giovanni Bellini was the oldest and still the best of the artists in Venice.
Sent 8: His drawings and engravings show the influence of others, notably Antonio Pollaiuolo with his interest in the proportions of the body, Mantegna, Lorenzo di Credi and others.
Sent 9: Durer probably also visited Padua and Mantua on this trip.
[A]: Which cities did Durer travel or likely travel to on his Italian trip?

[Q]: Paragraph- Sent 1: You couldnt survive without your skin.
Sent 2: It has many important functions.
Sent 3: The main function of the skin is controlling what enters and leaves the body.
Sent 4: It prevents the loss of too much water from the body.
Sent 5: It also prevents bacteria and other microorganisms from entering the body.
Sent 6: The skin helps maintain a constant body temperature.
Sent 7: It keeps the body cool in two ways.
Sent 8: Sweat from sweat glands in the skin evaporates to cool the body.
Sent 9: Blood vessels in the skin dilate, or widen.
Sent 10: This action increases blood flow to the body surface.
Sent 11: This allows more heat to reach the surface.
Sent 12: The heat is then able to radiate off the body.
Sent 13: The opposite happens to retain body heat.
Sent 14: Blood vessels in the skin constrict, or narrow.
Sent 15: This decreases blood flow to the body surface.
Sent 16: This reduces the amount of heat that reaches the surface.
Sent 17: When this happens, less heat can be lost to the air.
[A]:
The skin prevents the body from losing what and keeps what from entering the body?