Definition: In this task you are given a list of triplets of the form [subject, predicate, object] and the output should be a question based on the triplets but with the subject and/or object replaced with blanks (represented using two or more consecutive underscores). Triplet values encompassed in [*] are special tokens that can be replaced with synonyms. The objective is to construct a question in a manner that (a) captures the facts specified in at least one of the triplets, and (b) ideally contains a limited number of blanks such that it is a well-formed question that is easy to answer. A blank can represent a single word or a phrase.
Input: [['William Anders', 'DATE_OF_RETIREMENT', '"1969-09-01"'], ['William Anders', 'DATE_OF_BIRTH', '"1933-10-17"'], ['William Anders', 'OCCUPATION', 'Fighter pilot'], ['William Anders', 'BIRTH_PLACE', 'British Hong Kong'], ['William Anders', 'WAS_A_CREW_MEMBER_OF', 'Apollo 8']]

_____ was born in British Hong Kong on the 17th of October, 1933. He was a fighter pilot and also served as a crew member of _____. He retired on the 1st of September, 1969.