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Missing semantic relation labels
In your article you describe relation extraction task. In this task you require as an output set of tuples of three in form of
(head_entity, tail_entity, relation_label). However, in the dataset you publish one may find only relations in form defined by documents/*/document/*/linking
, which allows to create tuples of two (head_entity, tail_entity). Information about relation label is missing. Is it present somewhere else in your dataset, or it was by some mistake omitted when the dataset was published?