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: "fo model checking on posets of bounded width"
  Abstract: Over the past two decades the main focus of research into first-order (FO) model checking algorithms have been sparse relational structures-culminating in the FPT-algorithm by Grohe, Kreutzer and Siebertz for FO model checking of nowhere dense classes of graphs [STOC'14], with dense structures starting to attract attention only recently. Bova, Ganian and Szeider [LICS'14] initiated the study of the complexity of FO model checking on partially ordered sets (posets). Bova, Ganian and Szeider showed that model checking existential FO logic is fixed-parameter tractable (FPT) on posets of bounded width, where the width of a poset is the size of the largest antichain in the poset. The existence of an FPT algorithm for general FO model checking on posets of bounded width, however, remained open. We resolve this question in the positive by giving an algorithm that takes as its input an $n$-element poset $\cal P$ of width $w$ and an FO logic formula $\phi$, and determines whether $\phi$ holds on $\cal P$ in time $f(\phi,w)\cdot n^2$.

Connected through hyperedge HE-1 (induced by source paper "first order interpretations of bounded expansion classes"):
  with members:
    - "a new perspective on fo model checking of dense graph classes"
    - "on low rank width colorings"
    - "fo model checking of geometric graphs"
    - "first order query evaluation on structures of bounded degree"
    - "first order queries on structures of bounded degree are computable with constant delay"

Connected through hyperedge HE-2 (induced by source paper "fo model checking of geometric graphs"):
  with members:
    - "a new perspective on fo model checking of dense graph classes"
    - "fo model checking of interval graphs"
    - "model checking existential logic on partially ordered sets"
    - "faster existential fo model checking on posets"
    - "deciding first order properties of nowhere dense graphs"
    - "cleaning interval graphs"
    - "deciding first order properties of locally tree decomposable structures"

Connected through hyperedge HE-3 (induced by source paper "on the classes of interval graphs of limited nesting and count of lengths"):
  with members:
    - "extending partial representations of unit circular arc graphs"
    - "on the thinness and proper thinness of a graph"
    - "fo model checking of interval graphs"
    - "type based self stabilisation for computational fields"
    - "minimal and short representations of unit interval and unit circular arc graphs"
    - "bounded representations of interval and proper interval graphs"
    - "extending partial representations of interval graphs"
    - "extending partial representations of circle graphs"

Connected through hyperedge HE-4 (induced by source paper "fo model checking of interval graphs"):
  with members:
    - "algorithmic meta theorems"

Connected through hyperedge HE-5 (induced by source paper "quantified conjunctive queries on partially ordered sets"):
  with members:
    - "model checking existential logic on partially ordered sets"
    - "faster existential fo model checking on posets"
    - "deciding first order properties of nowhere dense graphs"

Connected through hyperedge HE-6 (induced by source paper "deciding first order properties of nowhere dense graphs"):
  with members:
    - "lower bounds for the complexity of monadic second order logic"
    - "domination problems in nowhere dense classes of graphs"
    - "on brambles grid like minors and parameterized intractability of monadic second order logic"
    - "algorithmic meta theorems"
    - "homomorphism preservation on quasi wide classes"
    - "deciding first order properties of locally tree decomposable structures"
    - "fixed parameter tractability definability and model checking"

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)