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 "strong equivalence and program s structure in arguing essential equivalence between logic programs"):
  Abstract: Answer set programming is a prominent declarative programming paradigm used in formulating combinatorial search problems and implementing distinct knowledge representation formalisms. It is common that several related and yet substantially different answer set programs exist for a given problem. Sometimes these encodings may display significantly different performance. Uncovering {\em precise formal} links between these programs is often important and yet far from trivial. This paper claims the correctness of a number of interesting program rewritings.

Includes members:
  Member "abstract gringo":
    also connected through other hyperedges:
      - Hyperedge HE-1 (induced by source paper "asp core 2 input language format")
  Member "first order modular logic programs and their conservative extensions":
    also connected through other hyperedges:
      (none)
  Member "lpopt a rule optimization tool for answer set programming":
    also connected through other hyperedges:
      - Hyperedge HE-2 (induced by source paper "selp a single shot epistemic logic program solver")
  Member "modularity aspects of disjunctive stable models":
    also connected through other hyperedges:
      - Hyperedge HE-3 (induced by source paper "partial compilation of asp programs")
  Member "a common view on strong uniform and other notions of equivalence in answer set programming":
    also connected through other hyperedges:
      - Hyperedge HE-4 (induced by source paper "inlining external sources in answer set programs")
  Member "weight constraints as nested expressions":
    also connected through other hyperedges:
      - Hyperedge HE-5 (induced by source paper "shared aggregate sets in answer set programming")

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.AI(Artificial Intelligence)