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: "trichotomy and dichotomy results on the complexity of reasoning with disjunctive logic programs"
  Abstract: We present trichotomy results characterizing the complexity of reasoning with disjunctive logic programs. To this end, we introduce a certain definition schema for classes of programs based on a set of allowed arities of rules. We show that each such class of programs has a finite representation, and for each of the classes definable in the schema we characterize the complexity of the existence of an answer set problem. Next, we derive similar characterizations of the complexity of skeptical and credulous reasoning with disjunctive logic programs. Such results are of potential interest. On the one hand, they reveal some reasons responsible for the hardness of computing answer sets. On the other hand, they identify classes of problem instances, for which the problem is "easy" (in P) or "easier than in general" (in NP). We obtain similar results for the complexity of reasoning with disjunctive programs under the supported-model semantics. To appear in Theory and Practice of Logic Programming (TPLP)

Connected through hyperedge HE-1 (induced by source paper "inconsistency proofs for asp the asp drupe format"):
  with members:
    - "asp core 2 input language format"
    - "shared aggregate sets in answer set programming"
    - "routing driverless transport vehicles in car assembly with answer set programming"
    - "textsf qrat generalizing qrat by a more powerful qbf redundancy property"
    - "efficient certified rat verification"
    - "vicious circle principle and logic programs with aggregates"
    - "team building with answer set programming in the gioia tauro seaport"
    - "detecting inconsistencies in large biological networks with answer set programming"

Connected through hyperedge HE-2 (induced by source paper "clique width and directed width measures for answer set programming"):
  with members:
    - "directed width measures and monotonicity of directed graph searching"
    - "a trichotomy for regular simple path queries on graphs"
    - "digraph complexity measures and applications in formal language theory"
    - "backdoors to tractable answer set programming"
    - "fixed parameter complexity of semantics for logic programs"
    - "a hierarchy of tractable subsets for computing stable models"

Connected through hyperedge HE-3 (induced by source paper "dual normal logic programs the forgotten class"):
  with members:
    - "backdoors to normality for disjunctive logic programs"
    - "team building with answer set programming in the gioia tauro seaport"
    - "characterising equilibrium logic and nested logic programs reductions and complexity1 2"
    - "semantical characterizations and complexity of equivalences in answer set programming"
    - "unfolding partiality and disjunctions in stable model semantics"

Connected through hyperedge HE-4 (induced by source paper "backdoors to normality for disjunctive logic programs"):
  with members:
    - "dual normal logic programs the forgotten class"
    - "the third open answer set programming competition"
    - "the parameterized complexity of reasoning problems beyond np"
    - "backdoors to abduction"
    - "the good the bad and the odd cycles in answer set programs"
    - "backdoors to satisfaction"
    - "backdoors to tractable answer set programming"
    - "detecting inconsistencies in large biological networks with answer set programming"

Connected through hyperedge HE-5 (induced by source paper "backdoors to tractable answer set programming"):
  with members:
    - "guarantees and limits of preprocessing in constraint satisfaction and reasoning"
    - "the parameterized complexity of reasoning problems beyond np"
    - "backdoors to normality for disjunctive logic programs"
    - "numvc an efficient local search algorithm for minimum vertex cover"
    - "backdoors to abduction"
    - "the good the bad and the odd cycles in answer set programs"
    - "strong backdoors to bounded treewidth sat"
    - "strong backdoors to nested satisfiability"

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)