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: He then entered the 2008 BMW Open in Munich, Germany, where he beat Carlos Berlocq in the first round. In the second round, he edged out Michael Berrer, Link Information: He then entered the 2008 BMW Open in Munich, Germany, where he beat Carlos Berlocq in the first round. In the second round, he edged out Michael Berrer, but lost to Fernando González Answer: Carlos Berlocq
answer:
Which of Safin's opponents that he defeated at the 2008 BMW Open was the oldest?


question:
Context: he studied classics at Link Information: He then transferred to the Answer: University of Pennsylvania
answer:
Of the two universities Alfred attended, which one admits more international students?


question:
Context: The Warsaw Pact arrived at the solution of maneuver warfare while massively increasing the number of anti-tank weapons. Link Information: none Answer: none
answer:

Which countries signed the Warsaw Pact?