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: Sir John Spicer was appointed to the first Royal Commission into the collision between HMAS Melbourne and HMAS Voyager, and inquiries into the aviation crashes of TAA Flight 538 (1960), Ansett-ANA Flight 325 (1961) and Ansett-ANA Flight 149 (1966). Link Information: All 29 people on board Trans Australia Airlines Flight 538 were killed. Answer: 68

Answer: How many people were killed in the crashes of the TAA Flight 538 , Ansett-ANA Flight 325 and Ansett-ANA Flight 149?


Question: Context: She made her film debut in 2000 with the Yash Raj Films movie Mohabbatein Link Information: none Answer: none

Answer: How long in minutes does the movie Mohabbatein measure?


Question: Context: Albert had Rudolph married to Princess Elizabeth Richeza of Poland, a member of the Piast dynasty and widow of the predeceased King Wenceslaus II. Link Information: Elizabeth Richeza of Poland (; ; 1 September 1288 – 19 October 1335), was a Polish princess member of the House of Piast and by her two marriages Queen consort  Answer: two

Answer:
How many times did the widow of King Wenceslaus II marry?