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 Input:
Passage: A musician named Dixie Dwyer begins working with mobsters to advance his career but falls in love with the girlfriend of gangland kingpin Dutch Schultz.
A dancer from Dixie's neighborhood, Sandman Williams, is hired with his brother by the Cotton Club, a jazz club where most of the performers are black and the customers white. Owney Madden, a mobster, owns the club and runs it with his right-hand man, Frenchy.
Dixie becomes a Hollywood film star, thanks to the help of Madden and the mob but angering Schultz. He also continues to see Schultz's moll, Vera Cicero, whose new nightclub has been financed by the jealous gangster.
In the meantime, Dixie's ambitious younger brother Vincent becomes a gangster in Schultz's mob and eventually a public enemy, holding Frenchy as a hostage.
Sandman alienates his brother Clay at the Cotton Club by agreeing to perform a solo number there. While the club's management interferes with Sandman's romantic interest in Lila, a singer, its cruel treatment of the performers leads to an intervention by Harlem criminal "Bumpy" Rhodes on their behalf.
Dutch Schultz is violently dealt with by Madden's men while Dixie and Sandman perform on the Cotton Club's stage. 
Question: How does the dancer know Clay?

Ex Output:
his brother.


Ex Input:
Passage: The film starts off with a scene from the novel Moby Dick, with a whaler on a stormy sea in the 19th century, chasing "the white whale". It turns out that the scene comes from the imagination of Dot, while she is sitting with the book. She goes out to play with Nelson the dolphin in his pool, and he teaches her how to stay underwater for long periods of time and to communicate underwater, as well as the history and evolution of sea creatures.
While they play together, Nelson hears the wail of a beached whale named "Tonga" from the local coast, and jumps out of his pool, over the cliff beside, and dives into the ocean on the other side, to check what is going on, with Dot coming along. Dot walks up on land to talk with Tonga, but becomes upset as two boys, Alex and Owen, stand and throw sand on the whale. The boys say that they only want to push the whale back to the sea. Together, they try to push Tonga back to the water, but fail. They decide to gather as many kids as possible, in order to help the whale as much as they can.
While Alex and Owen start to gather help, Dot sits beside Tonga, trying to converse. Tonga explains that her family has been killed by whalers, and she is the only survivor, but has lost the will to live. Dot explains that she and others want to help Tonga, and tries to by having Tonga placed in the same pool as Nelson to let her recover. Dot then realizes that they do not have a transport facility for a whale. Meanwhile, a crooked fishmonger becomes interested in Tonga as a possible "Fish" source. 
Question: What is the first name of the character who learns about the history and evolution of sea creatures?

Ex Output:
Dot.


Ex Input:
Passage: A series of murders of rich young women throughout the area of Globe, Arizona bear the distinctive signature of a serial killer. Clues lead Detective Charles Mendoza to visit Paul White, a sound expert installing hi-fi systems in wealthy people's homes. His special talent is to make a noise which echoes through the air cavities in his head and shows him where the sound of the speakers should come from and echo in the room. He is married to Joan, whom, ten years earlier, he had seduced away from Mike DeSantos, who was her then boyfriend. Joan and Paul have a daughter, Danielle, together.
Paul, installing equipment at Dr. Sutter's home, proximal to the most-recent murder, is approached by Detective Mendoza-- they have a cordial conversation about sound equipment, but it turns abruptly, when Mendoza asks Paul if he still hunts. Mendoza questions Paul about whether he knew the victim, and then asks him about the tires on his van-- a tread pattern that has been located at the scene of the murder.
Mendoza meets with his partner Phil at the police station, where Phil has gathered criminal record information on Paul-- they speculate on what kind of person he might be based on that information. Mendoza, working from photos of the crime scene, begins to identify some aspects of the killer's M/O.
Paul visits Fred, proprietor of the local diner-- Fred mentions that Ann Mason has been asking after Paul, ostensibly to work on her satellite system. 
Question: What are the first names of the people who speculate on what kind of person Paul might be?

Ex Output:

Charles.