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 "bisimulations for delimited control operators"):
  Abstract: We propose a survey of the behavioral theory of an untyped lambda-calculus extended with the delimited-control operators shift and reset. We define a contextual equivalence for this calculus, that we then aim to characterize with coinductively defined relations, called bisimilarities. We study different styles of bisimilarities (namely applicative, normal-form, and environmental), and we give several examples to illustrate their respective strengths and weaknesses. We also discuss how to extend this work to other delimited-control operators.

Includes members:
  Member "proving soundness of extensional normal form bisimilarities":
    also connected through other hyperedges:
      (none)
  Member "environmental bisimulations for delimited control operators with dynamic prompt generation":
    also connected through other hyperedges:
      - Hyperedge HE-1 (induced by source paper "an equational theory for weak bisimulation via generalized parameterized coinduction")
  Member "proving termination of evaluation for system f with control operators":
    also connected through other hyperedges:
      (none)
  Member "environmental bisimulations for delimited control operators":
    also connected through other hyperedges:
      - Hyperedge HE-2 (induced by source paper "environmental bisimulations for delimited control operators with dynamic prompt generation")
  Member "normal form bisimulations for delimited control operators":
    also connected through other hyperedges:
      - Hyperedge HE-3 (induced by source paper "proving soundness of extensional normal form bisimilarities")
  Member "applicative bisimulations for delimited control operators":
    also connected through other hyperedges:
      - Hyperedge HE-4 (induced by source paper "environmental bisimulations for delimited control operators with dynamic prompt generation")
  Member "an operational foundation for delimited continuations in the cps hierarchy":
    also connected through other hyperedges:
      - Hyperedge HE-5 (induced by source paper "proving soundness of extensional normal form bisimilarities")
  Member "delimited continuations in natural language quantification and polarity sensitivity":
    also connected through other hyperedges:
      - Hyperedge HE-6 (induced by source paper "learning dependency based compositional semantics")

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)