Corpora used to develop and evaluate the system.

Each line refers to a corpus, how it was used (Dev: development; Eval: evaluation; NER: Named Entity Recognition; RE: Relation extraction), the total number of relevant entities and relations annotated, and the number of documents.每一行对应一个语料库（corpus）、其使用方式（Dev：开发集（development）；Eval：评测集（evaluation）；NER：命名实体识别（Named Entity Recognition）；RE：关系抽取（Relation extraction））、已标注的相关实体与关系总数量，以及文档总数。