Question: Who is the sibling of the producer of Life?

full_context: Document 1: Nick Sagan: Nick Sagan (born September 16, 1970 in Boston, Massachusetts) is an American novelist and screenwriter. He is the author of the science fiction novels "Idlewild", "Edenborn", and "Everfree", and his screen credits include episodes of "" and "". He is the son of astronomer Carl Sagan and artist and writer Linda Salzman.
Document 2: Rust Never Sleeps: Rust Never Sleeps is a live album by Canadian singer-songwriter Neil Young and American band Crazy Horse. It was released on June 22, 1979, by Reprise Records. Most of the album was recorded live, then overdubbed in the studio. Young used the phrase "rust never sleeps" as a concept for his tour with Crazy Horse to avoid artistic complacency and try more progressive, theatrical approaches to performing live.
Document 3: James Young (Upper Canada politician): He was born in Nova Scotia in 1777 and settled in Ameliasburgh Township in Upper Canada. In 1808, he was named justice of the peace in the Midland District. He served in the local militia during the War of 1812 and became lieutenant colonel in 1824. He represented Hastings & Ameliasburg in the 6th Parliament of Upper Canada. He died at Carrying Place in 1831.
Document 4: Scott Young (writer): Scott Alexander Young (April 14, 1918 – June 12, 2005) was a Canadian journalist, sportswriter, novelist and the father of musicians Neil Young and Astrid Young. Over his career, Young wrote 45 books, including novels and non-fiction for adult and youth audiences.
Document 5: William Young (Nova Scotia politician): Born in Falkirk, the son of John Young and Agnes Renny, Young was first elected to the Nova Scotia House of Assembly in 1836 as a Reformer (or Liberal) and, as a lawyer, defended Reform journalists accused of libel. When responsible government was instituted in 1848, Young hoped to become the first Premier but was passed over in favour of fellow reformer James Boyle Uniacke and Young became Speaker. However, Young succeeded Uniacke in 1854.
Document 6: John Walter Scott: John Walter Scott (November 2, 1845 – January 4, 1919) of New York City, was originally from England, but he emigrated to the United States to take part in the California Gold Rush. Unsuccessful at the prospecting trade, Scott began to sell postage stamps for collectors and in a short period of time became the nation's leading stamp dealer. During his lifetime, he was known as "The Father of American Philately" by his fellow stamp collectors.
Document 7: William T. Young: William T. Young attended the University of Kentucky where he was a member of the Sigma Alpha Epsilon fraternity. Young graduated with high distinction in 1939 with a Bachelor of Science in mechanical engineering. After a short employment with Bailey Meter in Cleveland, Ohio, he served as a captain in the United States Army from 1941 to 1945.
Document 8: Landing on Water: Landing on Water is the 15th studio album by Canadian musician Neil Young. The album was released on July 21, 1986, by Geffen Records. Several of the songs on the album were resurrected from Neil Young and Crazy Horse's failed 1984 sessions - a set of sessions where, according to longtime producer David Briggs, the musicians "played like monkeys".
Document 9: This Note's for You: This Note's for You is the 16th studio album by Canadian musician Neil Young, released on April 11, 1988 on Reprise. It was originally credited to "Young and the Bluenotes." Part of the album's concept centered on the commercialism of rock and roll, and tours in particular. (The title selection, specifically, is a hostile social commentary on concert sponsorship.) The music is marked by the use of a horn section. It also marked Young's return to the recently re-activated Reprise Records after a rocky tenure with Geffen Records.
Document 10: Time Fades Away: Time Fades Away is a 1973 live album by Canadian musician Neil Young. Consisting of previously unreleased material, it was recorded with The Stray Gators on the support tour following 1972's highly successful "Harvest". Due to Young's dissatisfaction with the tour, it was omitted from his catalogue and not released on CD until 2017.
Document 11: Life (Neil Young & Crazy Horse album): Life is an album by Canadian musician Neil Young and his backing band Crazy Horse, and it is Young's last release on the Geffen label. As with their 1979 album "Rust Never Sleeps", Young and the Horse performed most of this album's songs live with the exceptions of "Cryin' Eyes" and "We Never Danced" which were recorded in studio. The album was released on July 6, 1987.
Document 12: Jacob Richler: Jacob Richler is a Canadian newspaper and magazine journalist, and the son of novelist Mordecai Richler and Florence Isabel (Wood). He was the inspiration for his father's "Jacob Two-Two" trilogy of children's books.
Document 13: Hey Hey, My My (Into the Black): Sheff: You disagree with Neil Young's lyric in Rust Never Sleeps: ``It's better to burn out than to fade away... ''
Document 14: Weld (album): Weld is a live album and concert video by Neil Young & Crazy Horse released in 1991, comprising performances recorded on the tour to promote the "Ragged Glory" album. It was initially released as a limited edition three-disc set entitled "Arc-Weld", with the "Arc" portion being a single disc consisting in its entirety of a sound collage of guitar noise and feedback. "Arc" has since been released as a separate title.
Document 15: Jock Young: Jock Young was educated at the London School of Economics. His PhD was an ethnography of drug use in Notting Hill, West London, out of which he developed the concept of moral panic. The research was published as "The Drugtakers". He was a founding member of the National Deviancy Conferences and a group of critical criminologists in which milieu he wrote the groundbreaking, "The New Criminology: For a Social Theory of Deviance" in 1973, with Ian Taylor and Paul Walton and "The Manufacture of News" (with Stan Cohen).
ground_truth: Astrid Young
sub_queries: Life >> producer Answer: Neil Young
Neil Young >> sibling Answer: Astrid Young