In this task, you're given a question, along with a context passage which has extra information available on certain terms mentioned in it. Your job is to determine which sentence(s) from the passage can be used to search for further information needed to answer the question.
--------
Question: Question: What was the name of Telfer's maternal grandfather? Passage:The son of Margaret Mellis and Adrian Stokes, he was born in St Ives and studied at the Slade School of Fine Art. He pursued postgraduate studies at the Brooklyn Museum Art School after being awarded a Beckmann Fellowship. He taught at Reading Art School and the Bath Academy in Corsham and exhibited his paintings in London, including a show at the Serpentine Gallery. In 1971, Stokes founded publishing firm Weproductions, which produced artist's books; from 1974, he operated in partnership with Helen Douglas. In 2002, Stokes moved to East Anglia to care for his mother. He redirected his focus to sculpture, which he exhibited at the Kettle's Yard open house in 2008 and at shows in various galleries.


Answer: The son of Margaret Mellis and Adrian Stokes, he was born in St Ives and studied at the Slade School of Fine Art


Question: Question: What city was Leaton in when he gave his acceptance speech at the UN headquarters? Passage:He won significant critical attention in 2006 when he was awarded the grand prize of the 2006 Film Your Issue competition, judged by President Barack Obama, George Clooney and the Dalai Lama, among others. Leaton presented his winning film Orphans in Africa and gave acceptance speeches, covered by the press, at three awards ceremonies: at the United Nations Headquarters where he was introduced by the President of USA Today, then again in Hollywood where he was introduced by the Mayor of Los Angeles, and finally during Sundance in Park City with Kevin Bacon and Mandy Moore. Leaton also received the 2006 grand prize Walt Disney Pictures paid internship. His mentors included some of the top executives, and he began getting hands-on experience on various Disney films. Years later when Lindsey Brookbank of the Collegiate Times asked him what his favorite memory was from his grand-prize internship, he replied "Having dinner with Roy Disney on board the Queen Mary." According to Brookbank, this internship gave Leaton the connections and experience that would help him land jobs in Hollywood after finishing college. He returned to Film Your Issue as a member of the jury the following year, and has also judged other student film contests.


Answer: Leaton presented his winning film Orphans in Africa and gave acceptance speeches, covered by the press, at three awards ceremonies: at the United Nations Headquarters where he was introduced by the President of USA Today, then again in Hollywood where he was introduced by the Mayor of Los Angeles, and finally during Sundance in Park City with Kevin Bacon and Mandy Moore


Question: Question: How old was Cuban Link when his first on-recorded performance was released? Passage:"Off the Books" is the third single from Stone Crazy, a 1997 album by East Coast hip hop group The Beatnuts. It was released by Relativity Records in both 12 inch and CD format in 1997. The song is produced by The Beatnuts and features raps by Juju and Psycho Les, the first on-record performance by Cuban Link, and a notable early verse from Big Punisher. (Big Pun's first on-record performance was the B-Side to Fat Joe's "Envy" single, "Firewater" with Fat Joe, Raekwon and Armageddon.) Lyrics from Psycho Les's verse were later sampled in "The Rep Grows Bigga" by Gang Starr and two Beatnuts songs: "No Escapin' This" and "Slam Pit". The track's beat samples "Break that Party and Opening" by Melvin Van Peebles, "Sign Song" by Buddy Baker, "Get out of My Life, Woman" by George Semper and "Hihache" by Lafayette Afro Rock Band.


Answer:
The song is produced by The Beatnuts and features raps by Juju and Psycho Les, the first on-record performance by Cuban Link, and a notable early verse from Big Punisher