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: His father, Hamilton Fish Kean (1862–1941), was a United States Senator from New Jersey Link Information: His father, Hamilton Fish Kean (1862–1941), was a United States Senator from New Jersey Answer: a single six-year term

Answer: How many terms as a senator did  Robert Kean's father serve?


Question: Context: Ripley's Believe It or Not! is the name of several documentary television series based on the newspaper feature. The first series aired on NBC from 1949 to 1950 Link Information: Palance made his Broadway debut in The Big Two in 1947 Answer: 2

Answer: How long had Jack Palance been in the public eye the year Ripley's first premiered on NBC?


Question: Context: Kubrat studied between 1984 and 1990 at the University of Navarra in Pamplona Link Information: none Answer: none

Answer:
How many students did the University of Navarra have the year Kubrat started studying there?