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: "finite open world query answering with number restrictions"
  Abstract: Open-world query answering is the problem of deciding, given a set of facts, conjunction of constraints, and query, whether the facts and constraints imply the query. This amounts to reasoning over all instances that include the facts and satisfy the constraints. We study finite open-world query answering (FQA), which assumes that the underlying world is finite and thus only considers the finite completions of the instance. The major known decidable cases of FQA derive from the following: the guarded fragment of first-order logic, which can express referential constraints (data in one place points to data in another) but cannot express number restrictions such as functional dependencies, and the guarded fragment with number restrictions but on a signature of arity only two. In this paper, we give the first decidability results for FQA that combine both referential constraints and number restrictions for arbitrary signatures: we show that, for unary inclusion dependencies and functional dependencies, the finiteness assumption of FQA can be lifted up to taking the finite implication closure of the dependencies[5]. Our result relies on new techniques to construct finite universal models of such constraints, for any bound on the maximal query size.

Connected through hyperedge HE-1 (induced by source paper "finite open world query answering with number restrictions"):
  with members:
    - "finite query answering in expressive description logics with transitive roles"
    - "querying the guarded fragment"
    - "data complexity of the two variable fragment with counting quantifiers"

Connected through hyperedge HE-2 (induced by source paper "when can we answer queries using result bounded data interfaces"):
  with members:
    - "finite open world query answering with number restrictions"
    - "querying the guarded fragment"
    - "data complexity of the two variable fragment with counting quantifiers"

Connected through hyperedge HE-3 (induced by source paper "finite query answering in expressive description logics with transitive roles"):
  with members:
    - "finite open world query answering with number restrictions"
    - "finite model reasoning over existential rules"

Connected through hyperedge HE-4 (induced by source paper "functional dependencies unleashed for scalable data exchange"):
  with members:
    - "finite open world query answering with number restrictions"
    - "data fusion resolving conflicts from multiple sources"
    - "the data exchange chase under the microscope"

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)