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: "nominal coalgebraic data types with applications to lambda calculus"
  Abstract: We investigate final coalgebras in nominal sets. This allows us to define types of infinite data with binding for which all constructions automatically respect alpha equivalence. We give applications to the infinitary lambda calculus.

Connected through hyperedge HE-1 (induced by source paper "on the behaviour of coalgebras with side effects and algebras with effectful iteration"):
  with members:
    - "a new foundation for finitary corecursion and iterative algebras"
    - "proper semirings and proper convex functors"
    - "proper functors and fixed points for finite behaviour"
    - "regular behaviours with names"
    - "sound and complete axiomatizations of coalgebraic language equivalence"
    - "generalizing determinization from automata to coalgebras"
    - "semantics of higher order recursion schemes"
    - "simulations of weighted tree automata"

Connected through hyperedge HE-2 (induced by source paper "a new coinductive confluence proof for infinitary lambda calculus"):
  with members:
    - "coinductive foundations of infinitary rewriting and infinitary equational logic"
    - "strict ideal completions of the lambda calculus"
    - "coinduction an elementary approach"
    - "partial order infinitary term rewriting"
    - "on streams that are finitely red"
    - "resumptions weak bisimilarity and big step semantics for while with interactive i o an exercise in mixed induction coinduction"
    - "infinitary combinatory reduction systems normalising reduction strategies"
    - "infinitary combinatory reduction systems confluence"

Connected through hyperedge HE-3 (induced by source paper "path category for free open morphisms from coalgebras with non deterministic branching"):
  with members:
    - "the power of convex algebras"
    - "on path based coalgebras and weak notions of bisimulation"
    - "regular behaviours with names"
    - "well pointed coalgebras"
    - "history preserving bisimilarity for higher dimensional automata via open maps"
    - "algebraic theories over nominal sets"
    - "generic trace semantics via coinduction"

Connected through hyperedge HE-4 (induced by source paper "a light modality for recursion"):
  with members:
    - "guarded dependent type theory with coinductive types"
    - "programming and reasoning with guarded recursion for coinductive types"
    - "first steps in synthetic guarded domain theory step indexing in the topos of trees"
    - "continuous markovian logics axiomatization and quantified metatheory"

Connected through hyperedge HE-5 (induced by source paper "regular behaviours with names"):
  with members:
    - "sound and complete axiomatizations of coalgebraic language equivalence"
    - "algebraic theories over nominal sets"
    - "full abstraction for nominal general references"
    - "rational streams coalgebraically"

Connected through hyperedge HE-6 (induced by source paper "coinductive techniques in infinitary lambda calculus"):
  with members:
    - "miniagda integrating sized and dependent types"
    - "data oblivious stream productivity"

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)