Q: In this task, you're given a statement, further information available on a particular linked term from the statement, and a question. Your job is to generate the answer to the question by using the information provided. If there is no clear answer obtainable, output 'none'.
Context: Many prefabricated concrete structures, common in the former Warsaw Pact countries, were modernized Link Information: none Question: What countries were part of the pact that saw prefabricated concrete structures modernized?
A:
Answer: none