In this task, you will be presented with a context from an academic paper and a question separated with a
. You have to answer the question based on the context.

Given the full text of a scientific publication, we want to rank its citations according to the author's judgments. We collected recent publications from the open-access PLoS journals and asked the authors to rank by closeness five citations we selected from their paper.
Question: what crowdsourcing platform is used?
asked the authors to rank by closeness five citations we selected from their paper