NNE: A Dataset for Nested Named Entity Recognition in English Newswire

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Knowledge Triples

Source Entity	Relationship	Target Entity
Named Entity Recognition Task	uses	NNE Material
NNE Material	comprises	Mentions OtherEntity
NNE Material	contains	Entity Types Material
NNE Material	covers	Wall Street Journal Material
NNE Material	has	Layers of Nesting OtherEntity