['Ontonotes', 'CoNLL04']
['pytorch', 'roberta', 'fill-mask', 'en', 'dataset:Ontonotes', 'dataset:CoNLL04', 'transformers', 'NER', 'named entity recognition', 'RE', 'relation extraction', 'entity mention detection', 'EMD', 'coreference resolution', 'license:apache-2.0', 'autotrain_compatible']