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.

Example Input: Passage: Frusciante continued to collaborate with his friend Omar Rodriguez-Lopez. Along with providing guitar work to The Mars Volta's studio albums, The Bedlam In Goliath and Octahedron, and Rodriguez-Lopez's solo albums Se Dice Bisonte, No Bufalo and Calibration (Is Pushing Luck and Key Too Far), he functioned as executive producer for Rodriguez-Lopez's directorial film debut, The Sentimental Engine Slayer. The film debuted at the Rotterdam Film Festival in February 2010. Along with work on the film, Frusciante and Rodriguez-Lopez have released two collaborative records in May 2010. The first is the album Omar Rodriguez-Lopez & John Frusciante, an album with just the two of them, the other a quartet record, Sepulcros de Miel, consisting of Rodriguez-Lopez, Frusciante, Juan Alderete and Marcel Rodriguez-Lopez.
Frusciante also contributed music to the documentary film, Little Joe, based upon Joe Dallesandro. In 2009, Frusciante appeared in the documentary, "The Heart is a Drum Machine." His full-length, forty-five-minute interview is available in the special features of the DVD release.On December 7, 2011, the Red Hot Chili Peppers were named 2012 inductees for the Rock And Roll Hall Of Fame. In an interview that same day, Anthony Kiedis talked about Frusciante and if he would attend the ceremony. Kiedis stated, "It would be a guess on my behalf on whether or not he'll come. I can't imagine that he would, but it's a 'you never know' kind of thing. I haven't talked to him in quite a while. I don't know where he's at these days. He'll obviously be more than welcome, and embraced if he does. If he doesn't, that's cool too." Flea also spoke about Frusciante by saying "He left us so many great gifts. He's a phenomenal musician and songwriter who gave so much to our band. All the feelings I have for him not being in the band any more ... He really took us to a higher level." Frusciante eventually declined to be present for the Red Hot Chili Peppers' induction into the Rock and Roll Hall of Fame in April.
Question: What is the full name of the person that provided guitar work to The Mars Volta's studio albums?
Example Output: John Frusciante.

Example Input: Passage: When Mary Beekman loses her waitress job, after a fight with her loutish boyfriend, trucker Mike O'Reilly she stands at a bridge on a windy night, losing her pay check through a windblown and leans over the guardrail of the bridge to catch it. Socialite Kenneth Alden catches her, thinking she wants to jump the bridge. He's lost everything that is not already mortgaged. Both down on their luck, they assume that the other is there to jump off the bridge.
Instead, Mary has an idea. If Ken sells shares to a syndicate of his wealthy friends, in a phoney beauty product, they'll have enough money for some clothes to pass Mary off in society, long enough to meet and marry a wealthy bachelor. Then, they can pay everyone back, with interest. The con might work, except that Ken has too much integrity to marry for money to Clarissa (whom he loves for years), and Mary is beginning to see his point when she falls for Pat, who has secrets of his own.
The plot boils over when Mike shows up to blow the lid off. Pat's valet is a thief, who promised not to act foolishly. But he escapes with a stolen Tiara. Meantime Mary thinks to leave as things do not work out, so she shares the taxi to the station with Pat's valet escaping with the Tiara. After a police chase, Mary is hauled off to the station.
It looks like no one is going to end up with anything, but a bad reputation; but, it's not over yet, in this curious, romantic comedy, about the social set, in 1930's America, from Chesterfield films.
Question: What is the full name of the person who wanted Ken to sell beauty product shares to his friends?
Example Output: Mary Beekman.

Example Input: Passage: In 1988, when Katrina "Kat" Connors was 17, her beautiful but mercurial mother, Eve, disappeared without a trace. The story weaves back-and-forth with flashbacks of Eve's past life and the present day.
In the flashbacks, Eve was a wild girl who gradually changed into a domesticated housewife after marrying Brock, an ordinary man who leads an uneventful life. While Kat explores her blossoming sexuality with her handsome but dim-witted neighbor and schoolmate, Phil, Eve struggles to deal with aging and quenching her youthful wildness. She tries to be sexy when Brock is away, even luring Phil's attention. After Eve disappears, Kat deals with her abandonment without much issue, occasionally releasing her own wild side, seducing the detective investigating her mother's disappearance. The film then jumps forward three years to the spring of 1991. On a break from college, Kat returns home and seems unfazed to learn that her father is in a relationship with a co-worker.
The detective Kat has been having an affair with informs her that Brock might have killed Eve after catching her cheating. Kat dismisses this theory, just like she did three years ago, but after mentioning the topic to her friends Beth and Mickey they tell her they suggested this same theory to her and she dismissed them as well. Kat suspects Phil of having slept with Eve and confronts him the night before she is to return to college, but Phil angrily rebuffs it and tells her that her father knows where her mother is.
Question: Whose wife is described as beautiful but mercurial?
Example Output:
Brock.