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 "topological complexity of context free omega languages a survey"):
  Abstract: We survey recent results on the topological complexity of context-free omega-languages which form the second level of the Chomsky hierarchy of languages of infinite words. In particular, we consider the Borel hierarchy and the Wadge hierarchy of non-deterministic or deterministic context-free omega-languages. We study also decision problems, the links with the notions of ambiguity and of degrees of ambiguity, and the special case of omega-powers.

Includes members:
  Member "borel hierarchy and omega context free languages":
    also connected through other hyperedges:
      - Hyperedge HE-1 (induced by source paper "the determinacy of context free games")
  Member "on omega context free languages which are borel sets of infinite rank":
    also connected through other hyperedges:
      - Hyperedge HE-2 (induced by source paper "on the length of the wadge hierarchy of omega context free languages")
  Member "an effective extension of the wagner hierarchy to blind counter automata":
    also connected through other hyperedges:
      - Hyperedge HE-3 (induced by source paper "wadge degrees of infinitary rational relations")
  Member "on winning conditions of high borel complexity in pushdown games":
    also connected through other hyperedges:
      (none)
  Member "wadge degrees of infinitary rational relations":
    also connected through other hyperedges:
      - Hyperedge HE-4 (induced by source paper "infinite games specified by 2 tape automata")
  Member "the complexity of games on higher order pushdown automata":
    also connected through other hyperedges:
      - Hyperedge HE-5 (induced by source paper "decision procedures for path feasibility of string manipulating programs with complex operations")
  Member "borel ranks and wadge degrees of context free omega languages":
    also connected through other hyperedges:
      - Hyperedge HE-6 (induced by source paper "infinite games specified by 2 tape automata")

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.LO(Logic in Computer Science)