human: Given a hyperedge-centered hypergraph: <hypergraph>, where the center hyperedge groups authors who co-authored the same paper.

Details of the hypergraph:
Center hyperedge (induced by source paper "Building a discourse-tagged corpus in the framework of Rhetorical Structure Theory"):
  Abstract: We describe our experience in developing a discourse-annotated corpus for community-wide use. Working in the framework of Rhetorical Structure Theory, we were able to create a large annotated resource with very high consistency, using a well-defined methodology and protocol. This resource is made publicly available through the Linguistic Data Consortium to enable researchers to develop empirically grounded, discourse-specific applications.

Includes members:
  Member "Discourse segmentation by human and automated means":
    also connected through other hyperedges:
      - Hyperedge HE-1 (induced by source paper "TENSE TREES AS THE "FINE STRUCTURE" OF DISCOURSE")
  Member "Building an Annotated Corpus for Text Summarization and Question Answering.":
    also connected through other hyperedges:
      - Hyperedge HE-2 (induced by source paper "Construction of Text Summarization Corpus for the Credibility of Information on the Web.")

Question: Please tell me which research area the co-authored paper (i.e., the source paper of the center hyperedge) belongs to. The 4 classes are: Computer science, Mathematics, Engineering, Economics, Psychology, Business. Directly output the class name.

gpt: Computer science