Factuality classification

In this task, systems are required to automatically propose a factual tag for each event in a text. Event are annotated and three possible categories of factuality are considered:

• Facts: current and past situations in the world that are presented as real.
• Counterfacts: current and past situations that the writer presents as not having happened.
• Possibilities, future situations, predictions, hypothesis and other options: situations presented as uncertain since the writer does not commit openly to the truth-value either because they have not happened yet or because the author does not know.