Missing semantic relation labels

[MichalTurski]

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?