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: "multiply recursive upper bounds with higman s lemma"
  Abstract: We develop a new analysis for the length of controlled bad sequences in well-quasi-orderings based on Higman's Lemma. This leads to tight multiply-recursive upper bounds that readily apply to several verification algorithms for well-structured systems.

Connected through hyperedge HE-1 (induced by source paper "the ideal approach to computing closed subsets in well quasi orderings"):
  with members:
    - "mixed powerdomains for probability and nondeterminism"
    - "well behaved transition systems"
    - "complexity hierarchies beyond elementary"
    - "demystifying reachability in vector addition systems"
    - "finite automata for the sub and superword closure of cfls descriptional and computational complexity"
    - "the power of priority channel systems"
    - "complexity bounds for ordinal based termination"
    - "computing downward closures for stacked counter automata"

Connected through hyperedge HE-2 (induced by source paper "complexity of controlled bad sequences over finite sets of mathbb n d"):
  with members:
    - "complexity hierarchies beyond elementary"
    - "ackermannian and primitive recursive bounds with dickson s lemma"
    - "alternating automata on data trees and xpath satisfiability"

Connected through hyperedge HE-3 (induced by source paper "complexity hierarchies beyond elementary"):
  with members:
    - "relating timed and register automata"
    - "demystifying reachability in vector addition systems"
    - "nonelementary complexities for branching vass mell and extensions"
    - "on freeze ltl with ordered attributes"
    - "trace inclusion for one counter nets revisited"
    - "the power of priority channel systems"
    - "the parametric ordinal recursive complexity of post embedding problems"
    - "graph logics with rational relations"

Connected through hyperedge HE-4 (induced by source paper "well behaved transition systems"):
  with members:
    - "reachability in two dimensional vector addition systems with states is pspace complete"
    - "context free commutative grammars with integer counters and resets"
    - "fixed dimensional energy games are in pseudo polynomial time"
    - "integer vector addition systems with states"
    - "kleene algebras and semimodules for energy problems"
    - "the power of well structured systems"
    - "forward analysis for wsts part ii complete wsts"
    - "forward analysis for wsts part i completions"

Connected through hyperedge HE-5 (induced by source paper "on reachability for unidirectional channel systems extended with regular tests"):
  with members:
    - "complexity hierarchies beyond elementary"
    - "generalized post embedding problems"
    - "the parametric ordinal recursive complexity of post embedding problems"
    - "graph logics with rational relations"
    - "the power of well structured systems"
    - "reachability analysis of communicating pushdown systems"
    - "cutting through regular post embedding problems"
    - "reachability of communicating timed processes"

Connected through hyperedge HE-6 (induced by source paper "generalized post embedding problems"):
  with members:
    - "complexity hierarchies beyond elementary"
    - "the parametric ordinal recursive complexity of post embedding problems"
    - "graph logics with rational relations"
    - "cutting through regular post embedding problems"
    - "alternating timed automata"

Connected through hyperedge HE-7 (induced by source paper "on the quantifier free dynamic complexity of reachability"):
  with members:
    - "dynamic conjunctive queries"

Connected through hyperedge HE-8 (induced by source paper "complexity bounds for ordinal based termination"):
  with members:
    - "complexity hierarchies beyond elementary"
    - "proving termination with transition invariants of height omega"
    - "the power of well structured systems"
    - "ranking functions for linear constraint loops"
    - "bounded termination of monotonicity constraint transition systems"
    - "automated complexity analysis based on the dependency pair method"
    - "ackermannian and primitive recursive bounds with dickson s lemma"

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)