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 "truly concurrent bisimilarities are game equivalent"):
  Abstract: We design games for truly concurrent bisimilarities, including strongly truly concurrent bisimilarities and branching truly concurrent bisimilarities, such as pomset bisimilarities, step bisimilarities, history-preserving bisimilarities and hereditary history-preserving bisimilarities.

Includes members:
  Member "completeness for game logic":
    also connected through other hyperedges:
      - Hyperedge HE-1 (induced by source paper "np reasoning in the monotone mu calculus")
  Member "algebra of concurrent games":
    also connected through other hyperedges:
      (none)
  Member "games for bisimulations and abstraction":
    also connected through other hyperedges:
      - Hyperedge HE-2 (induced by source paper "explaining non bisimilarity in a coalgebraic approach games and distinguishing formulas")
  Member "algebraic laws for true concurrency":
    also connected through other hyperedges:
      - Hyperedge HE-3 (induced by source paper "an algebra of actors based on true concurrency")
  Member "games and full completeness for multiplicative linear logic":
    also connected through other hyperedges:
      - Hyperedge HE-4 (induced by source paper "interaction laws of monads and comonads")

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)