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: Henry's famous Walk to Canossa Link Information: The Road to Canossa, sometimes called the Walk to Canossa (/Kanossa) or Humiliation of Canossa (), refers to Holy Roman Emperor Henry IV's trek to Canossa Castle, Italy, where Pope Gregory VII was staying as the guest of Margravine Matilda of Tuscany, at the height of the investiture controversy in January 1077 Answer: 1077 

Answer: What year did the Walk happen?


Question: Context: A Matter of Loaf and Death, broadcast on BBC One on Christmas Day 2008. Link Information: none Answer: none

Answer: Who was in charge of BBC One when A Matter of Loaf and Death was broadcast on the channel?


Question: Context: Swimmers Zane Jordan and Jade Ashleigh Howard qualified for the Games Link Information: 

Zane Jordan (born 18 July 1991 in Mufulira, Zambia) is an Olympic swimmer from Zambia. He swam for Zambia at the 2008 Olympics, finishing 65th in the 50 Freestyle and at the 2012 Summer Olympics, finishing 41st in the 100 backstroke. Answer: 100 backstroke

Answer:
In what events did Zambia's two swimmers at the 2012 Summer Olympics compete?