SemEval-2012 Task 7 presented a deceptively simple challenge: given an English sentence as a premise, select the sentence amongst two alternatives that more plausibly has a causal relation to the premise. In this paper, we describe the development of this task and its motivation. We describe the two systems that competed in this task as part of SemEval-2012, and compare their results to those achieved in previously published research. We discuss the characteristics that make this task so difficult, and offer our thoughts on how progress can be made in the future.
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