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 is one of the six main people featured in the documentary film Meet the Mormons released October 10, 2014 Link Information: Meet the Mormons is a 2014 American documentary film directed by Blair Treu  Answer: Blair Treu

Answer: Who directed the documentary Ken was featured in?


Question: Context: in 1959, through which he began working at the National Institutes of Health Link Information: in 1959, through which he began working at the National Institutes of Health Answer: late 1870s

Answer: What year was the organization established that Metzger began work at in 1959?


Question: Context: He was in private practice in New York City again from 1956 (joining the firm founded by his father, Patterson, Belknap & Webb - later Patterson, Belknap, Webb & Tyler) to 1988 Link Information: none Answer: none

Answer:
Was the firm that he worked for until 1988 established before 1950?