human: Given a hyperedge-centered hypergraph: <hypergraph>, where the center hyperedge is induced by one source paper and its member nodes are the cited papers.

Details of the hypergraph:
Center hyperedge (induced by source paper "documentation generator focusing on symbols for the html ized mizar library"):
  Abstract: The purpose of this project is to collect symbol information in the Mizar Mathematical Library and manipulate it into practical and organized documentation. Inspired by the MathWiki project and API reference systems for computer programs, we developed a documentation generator focusing on symbols for the HTML-ized Mizar library. The system has several helpful features, including a symbol list, incremental search, and a referrer list. It targets those who use proof assistance systems, the volume of whose libraries has been rapidly increasing year by year.

Includes members:
  Member "pide for asynchronous interaction with coq":
    also connected through other hyperedges:
      - Hyperedge HE-1 (induced by source paper "interaction with formal mathematical documents in isabelle pide")
  Member "premise selection for mathematics by corpus analysis and kernel methods":
    also connected through other hyperedges:
      - Hyperedge HE-2 (induced by source paper "an experimental study of formula embeddings for automated theorem proving in first order logic")
  Member "pide as front end technology for coq":
    also connected through other hyperedges:
      - Hyperedge HE-3 (induced by source paper "qed at large a survey of engineering of formally verified software")
  Member "isabelle jedit a prover ide within the pide framework":
    also connected through other hyperedges:
      - Hyperedge HE-4 (induced by source paper "lifter language to encode induction heuristics for isabelle hol")
  Member "atp and presentation service for mizar formalizations":
    also connected through other hyperedges:
      - Hyperedge HE-5 (induced by source paper "proof mining with dependent types")
  Member "large formal wikis issues and solutions":
    also connected through other hyperedges:
      - Hyperedge HE-6 (induced by source paper "proofpeer collaborative theorem proving")
  Member "licensing the mizar mathematical library":
    also connected through other hyperedges:
      (none)
  Member "a wiki for mizar motivation considerations and initial prototype":
    also connected through other hyperedges:
      - Hyperedge HE-7 (induced by source paper "prototyping systems that explain themselves for education")

Question: Please tell me which class the source paper belongs to. The 40 classes are: cs.NA(Numerical Analysis), cs.MM(Multimedia), cs.LO(Logic in Computer Science), cs.CY(Computers and Society), cs.CR(Cryptography and Security), cs.DC(Distributed, Parallel, and Cluster Computing), cs.HC(Human-Computer Interaction), cs.CE(Computational Engineering, Finance, and Science), cs.NI(Networking and Internet Architecture), cs.CC(Computational Complexity), cs.AI(Artificial Intelligence), cs.MA(Multiagent Systems), cs.GL(General Literature), cs.NE(Neural and Evolutionary Computing), cs.SC(Symbolic Computation), cs.AR(Hardware Architecture), cs.CV(Computer Vision and Pattern Recognition), cs.GR(Graphics), cs.ET(Emerging Technologies), cs.SY(Systems and Control), cs.CG(Computational Geometry), cs.OH(Other Computer Science), cs.PL(Programming Languages), cs.SE(Software Engineering), cs.LG(Machine Learning), cs.SD(Sound), cs.SI(Social and Information Networks), cs.RO(Robotics), cs.IT(Information Theory), cs.PF(Performance), cs.CL(Computation and Language), cs.IR(Information Retrieval), cs.MS(Mathematical Software), cs.FL(Formal Languages and Automata Theory), cs.DS(Data Structures and Algorithms), cs.OS(Operating Systems), cs.GT(Computer Science and Game Theory), cs.DB(Databases), cs.DL(Digital Libraries), cs.DM(Discrete Mathematics). Directly output the class name.

gpt: cs.MS(Mathematical Software)