In this task, you're given passages that contain mentions of names of people, places, or things. Some of these mentions refer to the same person, place, or thing. Your job is to write questions that evaluate one's understanding of such references. Good questions are expected to link pronouns (she, her, him, his, their, etc.) or other mentions to people, places, or things to which they may refer. Do not ask questions that can be answered correctly without understanding the paragraph or having multiple answers. Avoid questions that do not link phrases referring to the same entity. For each of your questions, the answer should be one or more phrases in the paragraph, and it should be unambiguous.
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Question: Passage: In early 2005, Frusciante entered the studio to work on his fifth and final studio album with the Chili Peppers, Stadium Arcadium. His guitar playing is dominant throughout the album, and he provides backing vocals on most of the tracks. Although usually following a "less is more" style of guitar playing, he began using a full twenty-four track mixer for maximum effect. In the arrangements, he incorporates a wide array of sounds and playing styles, similar to the funk-influenced Blood Sugar Sex Magik or the more melodic By the Way. He also changed his approach to his playing, opting to contribute solos and allow songs to be formed from jam sessions. In an interview from Guitar World, Frusciante explained how he approached his guitar solos for their album Stadium Arcadium completely differently from those for their previous albums. On Blood Sugar Sex Magik and Californication, Frusciante had a general idea how he wanted his guitar solos to sound. For Stadium Arcadium, almost every guitar solo was completely improvised by Frusciante on the spot. Several reviews have stressed that the influence of Hendrix is evident in his solos on the album, with Frusciante himself backing this up. He also expanded the use of guitar effects throughout the album, and used various other instruments such as the synthesizer and mellotron. He worked continuously with Rubin over-dubbing guitar progressions, changing harmonies and using all his technical resources.Frusciante began a series of collaborations with friend Omar Rodríguez-López and his band The Mars Volta, by contributing guitar and electronic instrumentation to song "Cicatriz ESP" off their album De-Loused in the Comatorium. He also contributed guitar solos on their 2005 album Frances the Mute. In 2006, he helped The Mars Volta complete their third album Amputechture by playing guitar on seven of its eight tracks. In return, Rodriguez-Lopez has played on several of Frusciante's solo albums, as well as making a guest appearance on Stadium Arcadium.

Answer: What is the name of the group that Frusciante provides backing vocals for?


Question: Passage: When Stephen Herrick, a sedate, mild-mannered shipping magnate, loses his opera tickets, Mrs. Grange, the aggressive mother of his fiancée Cecilia, insists upon being seated in the Herrick box anyway. Upon finding the Duncan family ensconced in their box, Mrs. Grange incites an argument that culminates with Dot Duncan hitting Stephen with her handbag.
After the Herrick party surrenders their seats to the Duncans, Dot realizes that her brother Pigeon found Stephen's lost tickets, and the embarrassed Duncans flee the theater.
The next day, at the offices of Herrick and Martin, Stephen is introduced to his new secretary, Dot Duncan. Recognizing Dot as his assailant from the previous evening, he dismisses her, but after she explains the confusion over the tickets, Stephen relents.
Soon after, Dot's beau, wrestler Claudius J. "Coffee Cup" Cup, returns from the Navy, promising to settle down and not re-enlist. While Dot and Coffee Cup are strolling down the street one day, Coffee Cup spots his pal Eddie, who he boasts, can grow four inches just by stretching. Eddie's aptitude for elongation draws a crowd, and soon Coffee Cup is taking bets from the skeptical onlookers. Stephen is drawn into the group when Dot borrows five dollars from him, and when the contest ends in a brawl in which Stephen is knocked unconscious, Coffee Cup takes him to the Duncan house to recover. Stephen awakens to the chaos of the Duncan household as Coffee Cup practices his wrestling technique on Pigeon, Mrs. Duncan delivers a neighbor's baby and Ivory, a sailor, tinkles the piano keys. Stephen is so delighted by Dot's boisterous family and friends that he accompanies her and Coffee Cup to a dance hall and congas the night away, forgetting all about his date with the snobbish Cecilia.

Answer: Who finds the shipping magnate's opera tickets?


Question: Passage: Ravel completed two operas, and worked on three others. The unrealised three were Olympia, La cloche engloutie and Jeanne d'Arc. Olympia was to be based on Hoffmann's The Sandman; he made sketches for it in 1898–99, but did not progress far. La cloche engloutie after Hauptmann's The Sunken Bell occupied him intermittently from 1906 to 1912, Ravel destroyed the sketches for both these works, except for a "Symphonie horlogère" which he incorporated into the opening of L'heure espagnole. The third unrealised project was an operatic version of Joseph Delteil's 1925 novel about Joan of Arc. It was to be a large-scale, full-length work for the Paris Opéra, but Ravel's final illness prevented him from writing it.Ravel's first completed opera was L'heure espagnole (premiered in 1911), described as a "comédie musicale". It is among the works set in or illustrating Spain that Ravel wrote throughout his career. Nichols comments that the essential Spanish colouring gave Ravel a reason for virtuoso use of the modern orchestra, which the composer considered "perfectly designed for underlining and exaggerating comic effects". Edward Burlingame Hill found Ravel's vocal writing particularly skilful in the work, "giving the singers something besides recitative without hampering the action", and "commenting orchestrally upon the dramatic situations and the sentiments of the actors without diverting attention from the stage." Some find the characters artificial and the piece lacking in humanity. The critic David Murray writes that the score "glows with the famous Ravel tendresse".The second opera, also in one act, is L'enfant et les sortilèges (1926), a "fantaisie lyrique" to a libretto by Colette. She and Ravel had planned the story as a ballet, but at the composer's suggestion Colette turned it into an opera libretto. It is more uncompromisingly modern in its musical style than L'heure espagnole, and the jazz elements and bitonality of much of the work upset many Parisian opera-goers. Ravel was once again accused of artificiality and lack of human emotion, but Nichols finds "profoundly serious feeling at the heart of this vivid and entertaining work". The score presents an impression of simplicity, disguising intricate links between themes, with, in Murray's phrase, "extraordinary and bewitching sounds from the orchestra pit throughout".Although one-act operas are generally staged less often than full-length ones, Ravel's are produced regularly in France and abroad.

Answer:
What is the name of the opera where critics accused the man who completed two operas of artificiality and lack of human emotion?