instruction:
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.
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: Lerdorf was born on Disko Island in Greenland Link Information: none Answer: none
answer:
Is Disko Island the main island in Greenland?


question:
Context: On August 21, 2001 Virus participated in his first major CMLL tournament, the Torneo Gran Alternativa ("Great Alternative Tournament") where he was teamed up with Blue Panther. Link Information: Genaro Vázquez Nevarez (born September 18, 1960) is a Mexican professional wrestler and trainer Answer: Genaro Vázquez Nevarez
answer:

What is the real name of the wrestler who Virus was partnered with in the Torneo Gran Alternativa?