Problem: Background: Isaac Asimov (; c. January 2, 1920 - April 6, 1992) was an American writer and professor of biochemistry at Boston University. He was known for his works of science fiction and popular science. Asimov was a prolific writer who wrote or edited more than 500 books and an estimated 90,000 letters and postcards. His books have been published in 9 of the 10 major categories of the Dewey Decimal Classification.
Context: Asimov was born on an unknown day between October 4, 1919 and January 2, 1920, inclusive. Asimov himself celebrated it on January 2.  Asimov's parents were Anna Rachel (nee Berman) and Judah Asimov, a family of Jewish millers. He was named Isaac after his mother's father, Isaac Berman. When he was born, his family lived in Petrovichi near Klimovichi, which was then Gomel Governorate in the Russian Soviet Federative Socialist Republic (now Smolensk Oblast, Russia). Asimov wrote of his father, "My father, for all his education as an Orthodox Jew, was not Orthodox in his heart", noting that "he didn't recite the myriad prayers prescribed for every action, and he never made any attempt to teach them to me".  In 1921, Asimov and 16 other children in Petrovichi caught double pneumonia. Only Asimov survived. He later had two younger siblings: a sister, Marcia (born Manya, June 17, 1922 - April 2, 2011), and a brother, Stanley (July 25, 1929 - August 16, 1995), who was vice-president of New York Newsday.  His family emigrated to the United States when he was three years old. Since his parents always spoke Yiddish and English with him, he never learned Russian, but he remained fluent in Yiddish as well as English. Growing up in Brooklyn, New York, Asimov taught himself to read at the age of five, and his mother got him into first grade a year early by claiming he was born on September 7, 1919. In third grade he learned about the "error" and insisted on an official correction of the date to January 2.  After becoming established in the U.S., his parents owned a succession of candy stores, in which everyone in the family was expected to work. The candy stores sold newspapers and magazines, a fact that Asimov credited as a major influence in his lifelong love of the written word, as it presented him with an unending supply of new reading material as a child that he could not have otherwise afforded. He became a naturalized U.S. citizen in 1928 at the age of eight.
Question: Did Isaac ever help out in the candy stores?
Answer: everyone in the family was expected to work.

Problem: 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: why was he depressed?
Answer:
Parker's life took a turn for the worst when his 2 year old daughter tragically passed away from pneumonia.