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: You might want to know how cold it is.
Sent 2: You may need to know how fast the wind is blowing.
Sent 3: Maybe it rained last night?
Sent 4: Do you know how much?
Sent 5: Does it feel humid to you?
Sent 6: You have heard all these questions before.
Sent 7: To answer these questions, we need data.
Sent 8: That data comes from special tools.
Sent 9: These tools collect data about the weather.
Sent 10: You can see some of the common tools listed below: A thermometer measures temperature.
Sent 11: An anemometer measures wind speed.
Sent 12: A rain gauge measures the amount of rain.
Sent 13: A hygrometer measures humidity.
Sent 14: A wind vane shows wind direction.
Sent 15: A snow gauge measures the amount of snow.
Question: How is weather measured?.

Ex Output:
Special tools.

Ex Input:
Paragraph- Sent 1: Imagine a glass of your favorite drink that never became empty.
Sent 2: Now think about what really happens.
Sent 3: You take a drink and there is less in the glass.
Sent 4: You keep drinking and soon it is all gone.
Sent 5: Good thing you have more to refill your glass.
Sent 6: What if there would never be any more of your favorite drink.
Sent 7: What would you do?
Sent 8: Now you know the difference between renewable and non-renewable.
Sent 9: Its too bad that many things here on Earth will run out.
Sent 10: This includes some of our natural resources we depend on.
Sent 11: Things like oil will not last forever.
Sent 12: There is a limited supply.
Sent 13: Someday, we will run out, so then what?
Sent 14: At current rates of use, coal will last about 300 years.
Sent 15: Petroleum will be used up in just a few decades.
Question: What scenario does the author use to illustrate the difference between renewable and non renewable resources?.

Ex Output:
He/she uses a glass and ones favorite drink, one case of were you always have that drink to fill the glass and no scenario there is no more to fill up the glass.

Ex Input:
Paragraph- Sent 1: Before 9/11, the CIA did not invest in developing a robust capability to conduct paramilitary operations with U.S. personnel.
Sent 2: It relied on proxies instead, organized by CIA operatives without the requisite military training.
Sent 3: The results were unsatisfactory.
Sent 4: Whether the price is measured in either money or people, the United States cannot afford to build two separate capabilities for carrying out secret military operations, secretly operating standoff missiles, and secretly training foreign military or paramilitary forces.
Sent 5: The United States should concentrate responsibility and necessary legal authorities in one entity.
Sent 6: The post-9/11 Afghanistan precedent of using joint CIA-military teams for covert and clandestine operations was a good one.
Sent 7: We believe this proposal to be consistent with it.
Sent 8: Each agency would concentrate on its comparative advantages in building capabilities for joint missions.
Sent 9: The operation itself would be planned in common.
Sent 10: The CIA has a reputation for agility in operations.
Sent 11: The military has a reputation for being methodical and cumbersome.
Sent 12: We do not know if these stereotypes match current reality; they may also be one more symptom of the civil-military misunderstandings we described in chapter 4.
Sent 13: It is a problem to be resolved in policy guidance and agency management, not in the creation of redundant, overlapping capabilities and authorities in such sensitive work.
Sent 14: The CIA's experts should be integrated into the military's training, exercises, and planning.
Sent 15: To quote a CIA official now serving in the field:"One fight, one team."Sent 16: Finally, to combat the secrecy and complexity we have described, the overall amounts of money being appropriated for national intelligence and to its component agencies should no longer be kept secret.
Sent 17: Congress should pass a separate appropriations act for intelligence, defending the broad allocation of how these tens of billions of dollars have been assigned among the varieties of intelligence work.
Sent 18: The specifics of the intelligence appropriation would remain classified, as they are today.
Question: When did the United States concentrate responsibility and necessary legal authorities as a joint CIA-military team?.

Ex Output:
11.