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 "on characterising distributability"):
  Abstract: We formalise a general concept of distributed systems as sequential compo- nents interacting asynchronously. We define a corresponding class of Petri nets, called LSGA nets, and precisely characterise those system specifications which can be imple- mented as LSGA nets up to branching ST-bisimilarity with explicit divergence.

Includes members:
  Member "on distributability of petri nets":
    also connected through other hyperedges:
      - Hyperedge HE-1 (induced by source paper "an operational petri net semantics for the join calculus")
  Member "synchrony vs causality in asynchronous petri nets":
    also connected through other hyperedges:
      - Hyperedge HE-2 (induced by source paper "on distributability of petri nets")
  Member "synchrony vs causality in the asynchronous pi calculus":
    also connected through other hyperedges:
      - Hyperedge HE-3 (induced by source paper "on distributability of petri nets")
  Member "abstract processes of place transition systems":
    also connected through other hyperedges:
      - Hyperedge HE-4 (induced by source paper "ccs it s not fair fair schedulers cannot be implemented in ccs like languages even under progress and certain fairness assumptions")
  Member "on synchronous and asynchronous interaction in distributed systems":
    also connected through other hyperedges:
      - Hyperedge HE-5 (induced by source paper "justness a completeness criterion for capturing liveness properties")
  Member "branching bisimilarity with explicit divergence":
    also connected through other hyperedges:
      - Hyperedge HE-6 (induced by source paper "ensuring liveness properties of distributed systems open problems")
  Member "comparing the expressive power of the synchronous and asynchronous pi calculi":
    also connected through other hyperedges:
      - Hyperedge HE-7 (induced by source paper "comparing process calculi using encodings")

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)