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: Have you ever looked closely at a globe?
Sent 2: That continents look like a giant jig-saw puzzle.
Sent 3: North America looks like it could fit next to Europe.
Sent 4: The edge of South America matches Africa.
Sent 5: Scientists noticed these same features.
Sent 6: It caused them to start asking questions.
Sent 7: They wanted to know if these continents were was connected?
Sent 8: If so, how can something so large move so far?
Sent 9: What could possibly have enough force to move such a giant slab of rock?
Sent 10: Is there other evidence that can provide clues to the past positions of continents?
Sent 11: How can answering these questions help us?
Sent 12: A scientist named Alfred Wegener had these same questions.
Sent 13: Wegener look at rocks on both sides of the Atlantic Ocean.
Sent 14: He noticed they were the same type and age.
Sent 15: He thought that the rocks must have formed side by side.
Sent 16: He proposed that the rocks then drifted apart.
Sent 17: One part went with North America.
Sent 18: The other part stayed with Europe.
Question: Wagner proposed that rocks drifted apart in which directions?.
Example Output: West to North America and East to Europe.

Example Input: Paragraph- Sent 1: Enter the Shoguns: Japan's austere, ruthless, but statesmanlike new ruler, Yoritomo Minamoto, set up his government in Kamakura (just south of modern Tokyo), well away from the "softening" influence of court life that had been the undoing of his predecessor, Kiyomori.
Sent 2: First of the national rulers to take the title of sei-i tai-shogun ("barbarian-subduing great general"), Minamoto expanded and consolidated his power by confiscating lands from some of the defeated Taira and redistributing them to his samurai vassals.
Sent 3: Minamoto died in 1199, and the feudal structure passed intact to the tutelage of his widow's family, the Hojo, who were content to play regent to a figurehead shogun, in much the same way as the Fujiwara had done with the emperor.
Sent 4: The fiction of Japanese imperial power had become infinitely extendable.
Sent 5: The emperor at Kyotostill seconded by a Fujiwara regent at courtlegitimized a Minamoto who was himself a military dictator controlled by a Hojo regent.
Sent 6: In a country where form and substance were inextricably interrelated, two things counted in politics: symbolic authority and real power.
Sent 7: Neither could exist without the other.
Sent 8: A thwarted Mongol invasion in 1274 weakened the Kamakura regime.
Sent 9: The fighting brought none of the usual spoils of war that provincial warlords and samurai had come to expect as payment.
Sent 10: And the treasury was empty after earthquake, famine, and plague had crippled the economy.
Sent 11: Buddhist monasteries were using their private armies to support imperial ambitions to bring power back to Kyoto.
Sent 12: Worst of all, the Kamakura warriors, resenting the way the Kyoto court referred to them as "Eastern barbarians," sought refinement in a ruinous taste for luxury: extravagant feasts, rich costumes, and opulent homes.
Sent 13: Kamakura was falling apart.
Question: How did Minamoto expand his power?.
Example Output: By confiscating lands from some of the defeated Taira and redistributing them to his samurai vassals.

Example Input: Paragraph- Sent 1: Littlefoot 's grandfather one night tells the children a story about '' The Lone Dinosaur '' , a legendary longneck who once protected the Great Valley from the most ferocious sharptooth ever to live .
Sent 2: A fight ensued , which led to the Sharptooth 's death .
Sent 3: However , the sharptooth left '' The Lone Dinosaur '' with a scar slashed across his right eye .
Sent 4: Soon after the battle , a huge monolith that resembled a proud sauropod , having life-sized Sharptooth teeth arranged around his neck , came out of the ground during an earthquake .
Sent 5: The dinosaurs called it '' Saurus Rock '' .
Sent 6: The legend also states that if anyone damages the monolith , bad luck would descend upon the valley .
Sent 7: A few days later when the kids are playing , Littlefoot accidentally falls off a cliff .
Sent 8: Just before he hits the ground , a gruff Diplodocus rescues him .
Sent 9: This longneck introduces himself only as '' Doc '' and gives no knowledge of his history .
Sent 10: Littlefoot is intrigued by this newcomer , who is scarred across one eye and displays prior knowledge of the Great Valley 's topography .
Sent 11: For the preceding reasons , Littlefoot assumes that Doc is the Lone Dinosaur .
Sent 12: He tells his friends this , narrating an apparently extemporaneous legend to support his assumption .
Sent 13: Inspired , Cera 's infant nieces , the twins Dinah and Dana , go to Saurus Rock without anyone noticing .
Sent 14: Later when the friends are playing , they notice that Dinah and Dana are missing .
Sent 15: Recalling their talk of the day before , they go to Saurus Rock to find them .
Question: Who saved littlefoot from the fall?.
Example Output:
Doc.