In this task, you're expected to write answers to questions involving multiple references to the same entity. The answer to the question should be unambiguous and a phrase in the paragraph. Most questions can have only one correct answer.

[EX Q]: Passage: Avery, who wears a Confederate Army uniform even though he didn't serve in the Civil War, demands that the men who work for rancher John Rutherford avenge him after Rutherford is killed trying to remove a squatter, Corey Everett, from his land.
A passing family, the Ferbers, are traveling by wagon. They meet Corey, who explains that he is homesteading, not squatting, and entitled to the property. Corey defended himself alone with dynamite after Rutherford's men attacked, but Avery became convinced that Corey had many men fighting by his side. He insists his men, led by ranch foreman Hook, call him "General" and obey his orders to launch another attack.
Hannah Ferber doesn't trust Corey at all. Her husband Louis is taken captive by Avery, who tortures and kills him, refusing to believe the truth that Corey is alone. Avery's men realize he is insane and intend to leave, so Avery destroys their water supply. Corey's water is now the only one within hundreds of miles.
Hannah shoots Corey in the shoulder and flees with her son, but returns to nurse him back to health after Louis's body is found. Together they stave off Avery, whose men desert him. Avery dies, astounded to learn that Corey had no other men fighting with him.
Question: Who meets someone that explains that they are homesteading?
[EX A]: Ferbers.

[EX Q]: Passage: Sir Richard Starkey (born 7 July 1940), known professionally as Ringo Starr, is an English musician, singer, songwriter and actor who gained worldwide fame as the drummer for the Beatles. He occasionally sang lead vocals with the group, usually for one song on each album, including "With a Little Help from My Friends", "Yellow Submarine", "Good Night", and their cover of "Act Naturally". He also wrote and sang the Beatles' songs "Don't Pass Me By" and "Octopus's Garden", and is credited as a co-writer of others, including "What Goes On" and "Flying".
Starr was afflicted by life-threatening illnesses during childhood, and he fell behind in school as a result of prolonged hospitalisations. He briefly held a position with British Rail before securing an apprenticeship at a Liverpool equipment manufacturer. Soon afterwards, he became interested in the UK skiffle craze and developed a fervent admiration for the genre. In 1957, he co-founded his first band, the Eddie Clayton Skiffle Group, which earned several prestigious local bookings before the fad succumbed to American rock and roll by early 1958. When the Beatles formed in 1960, Starr was a member of another Liverpool group, Rory Storm and the Hurricanes. After achieving moderate success in the UK and Hamburg, he quit the Hurricanes and joined the Beatles in August 1962, replacing Pete Best.
Starr played key roles in the Beatles' films and appeared in numerous others. After the band's break-up in 1970, he released several successful singles including the US number-four hit "It Don't Come Easy", and number ones "Photograph" and "You're Sixteen". In 1972, he released his most successful UK single, "Back Off Boogaloo", which peaked at number two. He achieved commercial and critical success with his 1973 album Ringo, which was a top-ten release in both the UK and the US. He has featured in a number of documentaries and hosted television shows. He also narrated the first two series of the children's television programme Thomas & Friends and portrayed "Mr Conductor" during the first season of the PBS children's television series Shining Time Station. Since 1989, he has toured with thirteen variations of Ringo Starr & His All-Starr Band.
Starr's musicianship has received praise from other drummers, including Phil Collins and Journey's Steve Smith. He was inducted into the Modern Drummer Hall of Fame in 1998. In 2011, Rolling Stone readers named Starr the fifth-greatest drummer of all time. Starr, who was previously inducted into the Rock and Roll Hall of Fame as a Beatle in 1988, was inducted for his solo career in 2015, making him one of 21 performers inducted more than once. He is the richest drummer in the world with a net worth of US$350 million. He was appointed a Knight Bachelor in the 2018 New Year Honours for services to music.
Question: What is the better-known name of the person who wrote and sang "Octopus's Garden"?
[EX A]: Ringo Starr.

[EX Q]: Passage: Whales are known to teach, learn, cooperate, scheme, and grieve. The neocortex of many species of whale is home to elongated spindle neurons that, prior to 2007, were known only in hominids. In humans, these cells are involved in social conduct, emotions, judgement, and theory of mind. Whale spindle neurons are found in areas of the brain that are homologous to where they are found in humans, suggesting that they perform a similar function.
Brain size was previously considered a major indicator of the intelligence of an animal. Since most of the brain is used for maintaining bodily functions, greater ratios of brain to body mass may increase the amount of brain mass available for more complex cognitive tasks. Allometric analysis indicates that mammalian brain size scales at approximately the or exponent of the body mass. Comparison of a particular animal's brain size with the expected brain size based on such allometric analysis provides an encephalisation quotient that can be used as another indication of animal intelligence. Sperm whales have the largest brain mass of any animal on earth, averaging 8,000 cubic centimetres (490 in3) and 7.8 kilograms (17 lb) in mature males, in comparison to the average human brain which averages 1,450 cubic centimetres (88 in3) in mature males. The brain to body mass ratio in some odontocetes, such as belugas and narwhals, is second only to humans.Small whales are known to engage in complex play behaviour, which includes such things as producing stable underwater toroidal air-core vortex rings or "bubble rings". There are two main methods of bubble ring production: rapid puffing of a burst of air into the water and allowing it to rise to the surface, forming a ring, or swimming repeatedly in a circle and then stopping to inject air into the helical vortex currents thus formed. They also appear to enjoy biting the vortex-rings, so that they burst into many separate bubbles and then rise quickly to the surface. Some believe this is a means of communication. Whales are also known to produce bubble-nets for the purpose of foraging.
Larger whales are also thought, to some degree, to engage in play. The southern right whale, for example, elevates their tail fluke above the water, remaining in the same position for a considerable amount of time. This is known as "sailing". It appears to be a form of play and is most commonly seen off the coast of Argentina and South Africa. Humpback whales, among others, are also known to display this behaviour.
Question: What type of behavior by whales do some believe is a form of communication?
[EX A]:
biting the vortex-rings.