Background: Charles Parker Jr. (August 29, 1920 - March 12, 1955), also known as Yardbird and Bird, was an American jazz saxophonist and composer. Parker was a highly influential jazz soloist and a leading figure in the development of bebop, a form of jazz characterized by fast tempos, virtuosic technique and advanced harmonies. Parker was a blazingly fast virtuoso, and he introduced revolutionary harmonic ideas including rapid passing chords, new variants of altered chords, and chord substitutions. His tone ranged from clean and penetrating to sweet and somber.
Context: Parker's life was riddled with depression and heroin addiction. This addiction caused him to miss performances and be considered unemployable. He frequently resorted to busking, receiving loans from fellow musicians and admirers, and pawning his saxophones for drug money. Heroin use was rampant in the jazz scene, and users could acquire it with little difficulty. Although he produced many brilliant recordings during this period, Parker's behavior became increasingly erratic. Heroin was difficult to obtain once he moved to California, where the drug was less abundant, so he used alcohol as a substitute. A recording for the Dial label from July 29, 1946, provides evidence of his condition. Before this session, Parker drank a quart of whiskey. According to the liner notes of Charlie Parker on Dial Volume 1, Parker missed most of the first two bars of his first chorus on the track, "Max Making Wax". When he finally did come in, he swayed wildly and once spun all the way around, away from his microphone. On the next tune, "Lover Man", producer Ross Russell physically supported Parker. On "Bebop" (the final track Parker recorded that evening) he begins a solo with a solid first eight bars; on his second eight bars, however, he begins to struggle, and a desperate Howard McGhee, the trumpeter on this session, shouts, "Blow!" at him. Charles Mingus considered this version of "Lover Man" to be among Parker's greatest recordings, despite its flaws. Nevertheless, Parker hated the recording and never forgave Ross Russell for releasing it. He re-recorded the tune in 1951 for Verve. Parker's life took a turn for the worst when his 2 year old daughter tragically passed away from pneumonia. He attempted suicide twice in 1954, which landed him in a mental hospital. When Parker received his discharge from the hospital, he was clean and healthy. Before leaving California, he recorded "Relaxin' at Camarillo" in reference to his hospital stay. He returned to New York, resumed his addiction to heroin and recorded dozens of sides for the Savoy and Dial labels, which remain some of the high points of his recorded output. Many of these were with his so-called "classic quintet" including Davis and Roach.
Question: Was there any other causes of depression?
Answer:

Question:
Iron Man is a fictional superhero appearing in American comic books published by Marvel Comics. The character was created by writer and editor Stan Lee, developed by scripter Larry Lieber, and designed by artists Don Heck and Jack Kirby. The character made his first appearance in Tales of Suspense #39 (cover dated March 1963). A wealthy American business magnate, playboy, and ingenious scientist, Anthony Edward "Tony" Stark suffers a severe chest injury during a kidnapping in which his captors attempt to force him to build a weapon of mass destruction.
The original Iron Man title explored Cold War themes, as did other Stan Lee projects in the early years of Marvel Comics. Where The Fantastic Four and The Incredible Hulk respectively focused on American domestic and government responses to the Communist threat, Iron Man explored industry's role in the struggle. Tony Stark's real-life model, Howard Hughes, was a significant defense contractor who developed new weapons technologies. Hughes was an icon both of American individualism and of the burdens of fame. Historian Robert Genter, in The Journal of Popular Culture, writes that Tony Stark specifically presents an idealized portrait of the American inventor. Where earlier decades had seen important technological innovations come from famous individuals (e.g., Nikola Tesla, Thomas Edison, Alexander Graham Bell, the Wright brothers), the 1960s saw new technologies (including weapons) being developed mainly by the research teams of corporations. As a result, little room remained for the inventor who wanted credit for, and creative and economic control over, his/her own creations. Issues of entrepreneurial autonomy, government supervision of research, and ultimate loyalty figured prominently in early Iron Man stories -- the same issues affecting American scientists and engineers of that era. Tony Stark, writes Genter, is an inventor who finds motive in his emasculation as an autonomous creative individual. This blow is symbolized by his chest wound, inflicted at the moment he is forced to invent things for the purposes of others, instead of just himself. To Genter, Stark's transformation into Iron Man represents Stark's effort to reclaim his autonomy, and thus his manhood. The character's pursuit of women in bed or in battle, writes Genter, represents another aspect of this effort. The pattern finds parallels in other works of 1960s popular fiction by authors such as "Ian Fleming (creator of James Bond), Mickey Spillane (Mike Hammer), and Norman Mailer, who made unregulated sexuality a form of authenticity."
Answer this question using a quote from the text above:

Any other real life models?

Answer:
Nikola Tesla, Thomas Edison, Alexander Graham Bell, the Wright brothers

Problem: Background: Kathleen Deanna Battle (born August 13, 1948) is an American operatic soprano known for her distinctive vocal range and tone. Born in Portsmouth, Ohio, Battle initially became known for her work within the concert repertoire through performances with major orchestras during the early and mid-1970s. She made her opera debut in 1975. Battle expanded her repertoire into lyric soprano and coloratura soprano roles during the 1980s and early 1990s until her eventual dismissal from the Metropolitan Opera in 1994.
Context: Among the conductors with whom Battle has worked are Herbert von Karajan, Riccardo Muti, Zubin Mehta, Seiji Ozawa, Claudio Abbado, Georg Solti, Carlo Maria Giulini, and Battle's fellow Ohioan James Levine, music director at New York's Metropolitan Opera. She has performed with many orchestras, including the New York Philharmonic, the Chicago Symphony Orchestra, the Boston Symphony Orchestra, the Philadelphia Orchestra, the Cleveland Orchestra, the Los Angeles Philharmonic, the Berlin Philharmonic, the Vienna Philharmonic, and the Orchestre de Paris. She has also appeared at the Salzburg Festival, Ravinia Festival, Tanglewood Festival, Blossom Festival, the Hollywood Bowl, Mann Music Centre Festival and the Caramoor Festival, and at Cincinnati May Festival. In recital, she has been accompanied on the piano by various accompanists including Margo Garrett, Martin Katz, Warren Jones, James Levine, Joel Martin, Ken Noda, Sandra Rivers, Howard Watkins, Dennis Helmrich, JJ Penna, and Ted Taylor. Collaborations with other classical artists include flautist Jean-Pierre Rampal, soprano Jessye Norman, mezzo-sopranos Frederica von Stade and Florence Quivar, violinist Itzhak Perlman, baritone Thomas Hampson, tenors Luciano Pavarotti and Placido Domingo, trumpeter Wynton Marsalis and guitarist Christopher Parkening. Away from the classical side, she has worked with vocalists Al Jarreau, Bobby McFerrin, Alicia Keys, and James Ingram, jazz saxophonist Grover Washington, Jr., jazz pianists Cyrus Chestnut and Herbie Hancock. Battle also lent voice to the song "This Time" on Janet Jackson's album Janet and sang the title song, "Lovers", for the 2004 Chinese action movie, House of Flying Daggers. She also performs the music of Stevie Wonder.
Question: what other things did she do besides classical?
Answer:
jazz