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: "description logic tboxes model theoretic characterizations and rewritability"
  Abstract: We characterize the expressive power of description logic (DL) TBoxes, both for expressive DLs such as ALC and ALCQIO and lightweight DLs such as DL-Lite and EL. Our characterizations are relative to first-order logic, based on a wide range of semantic notions such as bisimulation, equisimulation, disjoint union, and direct product. We exemplify the use of the characterizations by a first study of the following novel family of decision problems: given a TBox T formulated in a DL L, decide whether T can be equivalently rewritten as a TBox in the fragment L' of L.

Connected through hyperedge HE-1 (induced by source paper "dichotomies in ontology mediated querying with the guarded fragment"):
  with members:
    - "a dichotomy theorem for nonuniform csps"
    - "rewritability in monadic disjunctive datalog mmsnp and expressive description logics"
    - "extending consequence based reasoning to sriq"
    - "asking the metaquestions in constraint tractability"
    - "query rewriting and optimization for ontological databases"
    - "querying the guarded fragment"
    - "ontology based data access a study through disjunctive datalog csp and mmsnp"
    - "a dichotomy on the complexity of consistent query answering for atoms with simple keys"

Connected through hyperedge HE-2 (induced by source paper "exact learning of lightweight description logic ontologies"):
  with members:
    - "ontology based data access a study through disjunctive datalog csp and mmsnp"
    - "the logical difference for the lightweight description logic el"
    - "the dl lite family and relations"
    - "learning concept hierarchies from text corpora using formal concept analysis"
    - "a semantics and complete algorithm for subsumption in the classic description logic"

Connected through hyperedge HE-3 (induced by source paper "ontology mediated queries combined complexity and succinctness of rewritings via circuit complexity"):
  with members:
    - "the complexity of ontology based data access with owl 2 ql and bounded treewidth queries"
    - "theoretically optimal datalog rewritings for owl 2 ql ontology mediated queries"
    - "datalog rewritability of disjunctive datalog programs and its applications to ontology reasoning"
    - "tree like queries in owl 2 ql succinctness and complexity results"
    - "sound complete and minimal ucq rewriting for existential rules"
    - "ontology based data access a study through disjunctive datalog csp and mmsnp"
    - "exponential lower bounds and separation for query rewriting"
    - "rewriting ontological queries into small nonrecursive datalog programs"

Connected through hyperedge HE-4 (induced by source paper "the data complexity of description logic ontologies"):
  with members:
    - "a dichotomy theorem for nonuniform csps"
    - "the proof of csp dichotomy conjecture"
    - "rewritability in monadic disjunctive datalog mmsnp and expressive description logics"
    - "querying the guarded fragment"
    - "ontology based data access a study through disjunctive datalog csp and mmsnp"
    - "the dl lite family and relations"
    - "conjunctive query answering for the description logic shiq"
    - "a characterisation of first order constraint satisfaction problems"

Connected through hyperedge HE-5 (induced by source paper "inseparability and conservative extensions of description logic ontologies a survey"):
  with members:
    - "query based entailment and inseparability for alc ontologies full version"
    - "ontology based data access a study through disjunctive datalog csp and mmsnp"
    - "the logical difference for the lightweight description logic el"
    - "reasoning over ontologies with hidden content the import by query approach"
    - "foundations for uniform interpolation and forgetting in expressive description logics"
    - "variable forgetting in reasoning about knowledge"
    - "the dl lite family and relations"
    - "conjunctive query answering for the description logic shiq"

Connected through hyperedge HE-6 (induced by source paper "computing horn rewritings of description logics ontologies"):
  with members:
    - "datalog rewritability of disjunctive datalog programs and its applications to ontology reasoning"
    - "ontology based data access a study through disjunctive datalog csp and mmsnp"
    - "computing datalog rewritings beyond horn ontologies"
    - "the dl lite family and relations"
    - "a knowledge compilation map"

Connected through hyperedge HE-7 (induced by source paper "beyond owl 2 ql in obda rewritings and approximations extended version"):
  with members:
    - "computing datalog rewritings beyond horn ontologies"

Connected through hyperedge HE-8 (induced by source paper "on bisimulations for description logics"):
  with members:
    - "bisimulation based comparisons for interpretations in description logics"

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)