In this task, you're given a context, further information available on a particular linked term from the statement, and an answer term. Your job is to generate a question that can use the information provided to obtain the given answer. You should use the information on both context and link information to create the question. Note that the answer to the question should be exactly the given answer, and if the answer is none, the answer to the question shouldn't be obtainable from the context or linked information.
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Question: Context: He commanded the U.S. forces in the Battle of Tirad Pass, 2 December 1899, where General Gregorio del Pilar was killed Link Information: He was promoted to brigadier-general after this event. Answer: 1 

Answer: How long had Gregorio del Pilar been a General for when he was killed?


Question: Context: On 21 January 1779, Cooke was promoted to lieutenant and joined in the East Indies under Sir Edward Hughes Link Information: On 21 January 1779, Cooke was promoted to lieutenant and joined in the East Indies under Sir Edward Hughes Answer: 58

Answer: How old was Sir Edward Hughes when Cooke was promoted to Lieutenant?


Question: Context: Delta Connection regional jet service to Atlanta flown by Atlantic Southeast Airlines (ASA) on behalf of Delta Air Lines ended on May 1, 2008 Link Information: The mayor of Atlanta is Keisha Lance Bottoms, a Democrat elected on a nonpartisan ballot whose first term in office began on January 2, 2018. Answer: Keisha Lance Bottoms

Answer:
Who is the mayor of the city that Delta Connection ended service to on May 1, 2008?