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 was the son of Henry Andrade Harben and the grandson of Sir Henry Harben Link Information: Henry Andrade Harben FSA (12 August 1849 - 18 August 1910) Answer: 26

Answer: What is the age difference between Harben's father and grandfather?


Question: Context: Built by Polish engineer Thaddeus Kosciuszko under the command of George Washington, Fort Mercer was built in 1777 Link Information: Andrzej Tadeusz Bonawentura Kościuszko (; 4 or 12 February 1746  Answer: 31

Answer: How old was the engineer who built Fort Mercer when it was built?


Question: Context: In one game in January 2008, Neilson came off the bench to score four goals for Ware against Tilbury Link Information: none Answer: none

Answer:
The year that Neilson came off the bench to score 4 goals for Ware against Tilbury, what was Tilbury's record that season?