human: Given a node-centered hypergraph: <hypergraph>, where nodes represent papers and hyperedges represent sets of papers co-cited by a source paper.

Details of the hypergraph:
Center node: "proving correctness and completeness of normal programs a declarative approach"
  Abstract: We advocate a declarative approach to proving properties of logic programs. Total correctness can be separated into correctness, completeness and clean termination; the latter includes non-floundering. Only clean termination depends on the operational semantics, in particular on the selection rule. We show how to deal with correctness and completeness in a declarative way, treating programs only from the logical point of view. Specifications used in this approach are interpretations (or theories). We point out that specifications for correctness may differ from those for completeness, as usually there are answers which are neither considered erroneous nor required to be computed. #R##N#We present proof methods for correctness and completeness for definite programs and generalize them to normal programs. For normal programs we use the 3-valued completion semantics; this is a standard semantics corresponding to negation as finite failure. The proof methods employ solely the classical 2-valued logic. We use a 2-valued characterization of the 3-valued completion semantics which may be of separate interest. The presented methods are compared with an approach based on operational semantics. We also employ the ideas of this work to generalize a known method of proving termination of normal programs.

Connected through hyperedge HE-1 (induced by source paper "on correctness of an n queens program"):
  with members:
    - "correctness and completeness of logic programs"
    - "logic control on program construction and verification"

Connected through hyperedge HE-2 (induced by source paper "proving completeness of logic programs with the cut"):
  with members:
    - "on definite program answers and least herbrand models"
    - "correctness and completeness of logic programs"
    - "on completeness of logic programs"
    - "automated termination analysis for logic programs with cut"
    - "the witness properties and the semantics of the prolog cut"

Connected through hyperedge HE-3 (induced by source paper "correctness and completeness of logic programs"):
  with members:
    - "on definite program answers and least herbrand models"
    - "on completeness of logic programs"
    - "truth versus information in logic programming"
    - "logic control on program construction and verification"
    - "logic control an example of program construction"
    - "xsb extending prolog with tabled logic programming"
    - "polytool polynomial interpretations as a basis for termination analysis of logic programs"
    - "automated termination proofs for logic programs by term rewriting"

Connected through hyperedge HE-4 (induced by source paper "on completeness of logic programs"):
  with members:
    - "correctness and completeness of logic programs"
    - "logic control an example of program construction"

Connected through hyperedge HE-5 (induced by source paper "logic control on program construction and verification"):
  with members:
    - "proving completeness of logic programs with the cut"
    - "on definite program answers and least herbrand models"
    - "correctness and completeness of logic programs"
    - "on completeness of logic programs"
    - "sicstus prolog the first 25 years"
    - "polytool polynomial interpretations as a basis for termination analysis of logic programs"
    - "classes of terminating logic programs"

Question: Please tell me which class the center node 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)