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.

Ex Input:
Question: How old was Robert Eden's father when Robert was born? Passage:Eden, the third son of Sir Frederick Morton Eden, was born on 2 September 1804 and educated at Westminster School and Christ Church, Oxford. He took a third class in Classics in 1826 and proceeded B.A. in 1827. Ordained deacon and priest by Christopher Bethell, the Bishop of Gloucester in 1828, he served successively the curacies of Weston-sub-Edge in Gloucestershire, and Messing and Peldon in Essex, and became Rector of Leigh in Essex in 1837. Here, on the resignation of Bishop Low, he accepted the offer of the Scottish See of Moray and Ross; he was consecrated at Old Saint Paul's, Edinburgh, 9 March 1851. On this occasion his university conferred on him the degree of D.D. In 1862 he was elected Primus of the Scottish Episcopal Church, in succession to Bishop Terrot. In 1827 he married Emma, daughter of Justice Allan Park, by whom he had five sons and five daughters. He died peacefully on the evening of 26 August 1886, at his official residence in Inverness.


Ex Output:
Eden, the third son of Sir Frederick Morton Eden, was born on 2 September 1804 and educated at Westminster School and Christ Church, Oxford


Ex Input:
Question: What year did Philby defect? Passage:In May 1986, Souther requested Soviet citizenship, aware that the investigation against him was progressing. In June, fearing imminent arrest, Souther defected to the Soviet Union by flying from the United States to Rome, where the Soviet intelligence services transferred him to Moscow. Initially, Soviet counterintelligence units were suspicious of Souther's defection and feared that he was a double agent for the CIA, but he was cleared shortly afterwards. On 2 October 1986, Souther was granted Soviet citizenship in a decree from the Presidium of the Supreme Soviet, and adopted the Russian name Mikhail Yevgenyevich Orlov. Souther was well-received by the Soviet authorities, gifting him an apartment in Moscow and a dacha on the outskirts of the city, and promoting him to the rank of major in the KGB – one of few foreign spies to be commissioned as an officer in the agency. Souther became actively engaged in scientific activities, developed his own English teaching program, walked around Moscow a lot, and travelled to other Soviet cities. Souther met and befriended other foreign Soviet intelligence agents that had defected including Kim Philby and George Blake. Souther married a Russian woman named Elena, an English teacher at the Intelligence Institute, and they had a daughter named Alexandra. In early 1989, Souther was awarded an Order of Friendship of Peoples for his contributions in the intelligence services following a petition from the KGB leadership.


Ex Output:
Souther met and befriended other foreign Soviet intelligence agents that had defected including Kim Philby and George Blake


Ex Input:
Question: Which opera house Easterlin has performed in during his career is the oldest? Passage:Easterlin received his Bachelor of Music degree from the University of Miami and his Bachelor of Science degree from Florida International University, and after a successful career in corporate advertising, began his performing career in musical theatre before moving into opera. He went on to perform at many of America's leading opera houses and festivals, including the Lyric Opera of Chicago, San Francisco Opera, Los Angeles Opera, Seattle Opera, New York City Opera, Dallas Opera, the Opera Company of Philadelphia, the Ravinia Festival with the Chicago Symphony conducted by Daniel Barenboim for the opening night of the Centennial Season, and Spoleto Festival USA in a new production of Ariadne auf Naxos conducted by Emmanual Villaume. He made his debut at the Glimmerglass Opera Festival in the summer of 2009 as 'The Magician' in a new production of Menotti's The Consul. According to Opera News, Easterlin spent 200 hours learning magic tricks for this production, which included producing a live rabbit on stage. Another unusual role for him was Houston Grand Opera's 2006 all-puppet production of Humperdinck's opera Hansel and Gretel in which he sang the role of the Witch as well as operating her twelve-foot high puppet.


Ex Output:

He went on to perform at many of America's leading opera houses and festivals, including the Lyric Opera of Chicago, San Francisco Opera, Los Angeles Opera, Seattle Opera, New York City Opera, Dallas Opera, the Opera Company of Philadelphia, the Ravinia Festival with the Chicago Symphony conducted by Daniel Barenboim for the opening night of the Centennial Season, and Spoleto Festival USA in a new production of Ariadne auf Naxos conducted by Emmanual Villaume