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.

Input: Consider Input: Paragraph- Sent 1: When land is cleared, habitats are lost.
Sent 2: It may be cleared for agriculture.
Sent 3: It may also be used for building new homes or businesses.
Sent 4: Within the past 100 years, the amount of land used for agriculture has almost doubled.
Sent 5: Land used for grazing cattle has more than doubled.
Sent 6: Many wetlands have also been lost to agriculture.
Sent 7: The U.S. has lost almost all the natural tall-grass prairies.
Sent 8: Thee areas of tall thick grass have virtually disappeared.
Sent 9: These areas of land had thick fertile soil.
Sent 10: Their grasses had very deep root systems.
Sent 11: These deep and thick roots reduced the amount of soil erosion.
Sent 12: They also were home to many plants and animals.
Sent 13: Prairies were wonderful places.
Sent 14: They were home to colorful flowers, prairie dogs, and herds of bison.
Question: What are the advantages of tall grass prairies?.

Output: Less erosion.

Input: Consider Input: Paragraph- Sent 1: There once was a guy named Kevin and girl named Erin.
Sent 2: They really liked spending time together.
Sent 3: One day, Kevin traveled from his home in the United States of America to Erin's house in England.
Sent 4: They then thought to take a sudden trip around the world.
Sent 5: They first traveled by plane around Europe, where they saw many different people and sights.
Sent 6: They then took a boat to Africa and Asia, where they went on a trip through the mountains.
Sent 7: Later in the month, they traveled to China by train and were allowed to see how different life was over there.
Sent 8: Next they took another plane to Australia, where they had a lot of fun seeing kangaroos and a different type of English speaking people.
Sent 9: After spending a week in Australia, Kevin and Erin took a really long plane ride to North America, where they drove across the land.
Sent 10: They saw everything from the mountains to forests.
Sent 11: They even got to visit the beach!
Sent 12: Because they had so much fun, Kevin returned home with Erin to England where they hung out and spent the next few days and months talking about all of the neat things they saw and did on their trip.
Question: Did Kevin and Erin live together?.

Output: No.

Input: Consider Input: Paragraph- Sent 1: The modern Republic of Turkey dates only from 1923, but the history of the land within its borders stretches back to the dawn of humanity.
Sent 2: Widespread finds of Stone Age implements in cave excavations show that Anatolia was already inhabited during the Middle of the Palaeolithic period (about 200,000 to 40,000 years ago).
Sent 3: By Neolithic times, organized communities had arisen, such as the one at Catalhoyuk, near Konya, Turkey's most important prehistoric site.
Sent 4: This town, which flourished between 6500 and 5500 b.c.
Sent 5: , had flat-roofed houses of mud and timber decorated with wall-paintings, some of which show patterns that still appear on Anatolian kilims.
Sent 6: The advent of the Bronze Age (about 3200 b.c.
Sent 7: ), and the spread of city-states ruled by kings, is marked by the appearance of royal tombs containing bronze objects in such places as Troy in the west, and Alacahoyuk near Ankara.
Sent 8: Around this time the Sumerian civilization living in Mesopotamia (the region between the Tigris and Euphrates rivers in present-day Iraq) founded and developed the cuneiform script, the world's oldest form of writing on record.
Sent 9: The technique was introduced by Assyrian traders 1,000 years later into Anatolia, where it was quickly adopted by the indigenous Hatti people, who, at this point, had already reached an advanced state of civilization.
Sent 10: The Hittites: The capital of the Hatti was Kanesh (modern Kultepe, near Kayseri).
Sent 11: Cuneiform tablets found here record the arrival in Anatolia of warlike invaders around the second millennium b.c.
Sent 12: Their origins remain a mystery (their written language was finally deciphered in 1915), but they came from the direction of the Caucasus mountains, spreading destruction and disorder throughout Anatolia.
Sent 13: It was two hundred years before they were firmly entrenched in their newly conquered empire.
Sent 14: The newcomers were the Hittites, and their domination of Anatolia can be divided into three distinct periods: the Old Kingdom (c.
Sent 15: 16001450 b.c.
Sent 16: ), then the New or Empire Period (c.
Sent 17: 14501200 b.c.
Sent 18: ), and the Late Hittite Period (c.
Question: What is marked by the appearance of royal tombs containing bronze objects?.
Output: The Bronze Age.