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.

Example Input: Paragraph- Sent 1: While this process moved along, diplomacy continued its rounds.
Sent 2: Direct pressure on the Taliban had proved unsuccessful.
Sent 3: As one NSC staff note put it, "Under the Taliban, Afghanistan is not so much a state sponsor of terrorism as it is a state sponsored by terrorists."Sent 4: In early 2000, the United States began a high-level effort to persuade Pakistan to use its influence over the Taliban.
Sent 5: In January 2000, Assistant Secretary of State Karl Inderfurth and the State Department's counterterrorism coordinator, Michael Sheehan, met with General Musharraf in Islamabad, dangling before him the possibility of a presidential visit in March as a reward for Pakistani cooperation.
Sent 6: Such a visit was coveted by Musharraf, partly as a sign of his government's legitimacy.
Sent 7: He told the two envoys that he would meet with Mullah Omar and press him on Bin Laden.
Sent 8: They left, however, reporting to Washington that Pakistan was unlikely in fact to do anything," given what it sees as the benefits of Taliban control of Afghanistan."Sent 9: President Clinton was scheduled to travel to India.
Sent 10: The State Department felt that he should not visit India without also visiting Pakistan.
Sent 11: The Secret Service and the CIA, however, warned in the strongest terms that visiting Pakistan would risk the President's life.
Sent 12: Counterterrorism officials also argued that Pakistan had not done enough to merit a presidential visit.
Sent 13: But President Clinton insisted on including Pakistan in the itinerary for his trip to South Asia.
Sent 14: His one-day stopover on March 25, 2000, was the first time a U.S. president had been there since 1969.
Sent 15: At his meeting with Musharraf and others, President Clinton concentrated on tensions between Pakistan and India and the dangers of nuclear proliferation, but also discussed Bin Laden.
Sent 16: President Clinton told us that when he pulled Musharraf aside for a brief, one-on-one meeting, he pleaded with the general for help regarding Bin Laden."Sent 17: I offered him the moon when I went to see him, in terms of better relations with the United States, if he'd help us get Bin Laden and deal with another issue or two."Sent 18: The U.S. effort continued.
Question: What were two reasons the Secret Service, the CIA and counterterrorism officials advised President Clinton not to visit Pakistan?.
Example Output: The Secret Service and the CIA, however, warned in the strongest terms that visiting Pakistan would risk the President's life.

Example Input: Paragraph- Sent 1: Roger was a grasshopper.
Sent 2: He loved to hop.
Sent 3: He hopped everywhere by himself.
Sent 4: One day when he was hopping around he bumped into a frog sitting on a log.
Sent 5: The frog told him his name was Gilbert.
Sent 6: Gilbert told Roger that it had been a long time since he bumped into anybody.
Sent 7: Roger told him that since both grasshoppers and frogs like to jump they would make great friends.
Sent 8: The next day they were hopping through a field and they saw something very strange.
Sent 9: In a pond they saw a spider floating on a lily pad.
Sent 10: The spider was very sad because he did not have any friends.
Sent 11: Roger and Gilbert asked him why he didn't have any friends.
Sent 12: The spider told them that everybody would scream and run away when they saw him.
Sent 13: Roger and Gilbert told him that he didn't look scary to them and that he could come along with them if he wanted.
Sent 14: So Sam the spider said yes, and the three of them began a life time friendship full of adventures.
Question: Which two characters saw something strange?.
Example Output: Roger and Gilbert.

Example Input: Paragraph- Sent 1: The documentary portrays a behind-the-scenes look at the poor state of Argentina's civil aviation , and puts the blame on the Argentine Air Force .
Sent 2: The Air Force has been in control of air traffic operations since the military takeover of General Juan Carlos Ongan a in 1966 .
Sent 3: The producer/director , Enrique Pi eyro , claims Argentina and Nigeria are the only countries whose air force controls and regulates the airline industry .
Sent 4: Pi eyro , a former Argentine airline pilot , makes his case in the documentary using diagrams , 3D animations , interviews , hidden cameras in the control tower , and a few props .
Sent 5: For example , at one point he spills out a bag of plastic airplanes and equates it to the number of planes the air force has lost due to negligence .
Sent 6: The film is heavily based on the Austral L neas A reas Flight 2553 plane crash .
Sent 7: Enrique Pi eyro takes his camera , secretly , into the control tower of the Ministro Pistarini International Airport also-known-as Ezeiza , the international airport at Buenos Aires .
Question: What is one type of prop the director uses to prove a point?.
Example Output:
A bag of plastic airplanes.