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: "beyond the runs theorem"
  Abstract: Recently, a short and elegant proof was presented showing that a binary word of length $n$ contains at most $n-3$ runs. Here we show, using the same technique and a computer search, that the number of runs in a binary word of length $n$ is at most $\frac{22}{23}n<0.957n$.

Connected through hyperedge HE-1 (induced by source paper "prefix frequency of lost positions"):
  with members:
    - "the runs theorem"
    - "fully bordered words"

Connected through hyperedge HE-2 (induced by source paper "near optimal computation of runs over general alphabet via non crossing lce queries"):
  with members:
    - "the runs theorem"
    - "faster longest common extension queries in strings over general alphabets"
    - "computing runs on a general alphabet"
    - "internal pattern matching queries in a text and applications"

Connected through hyperedge HE-3 (induced by source paper "optimal searching of gapped repeats in a word"):
  with members:
    - "the runs theorem"
    - "longest gapped repeats and palindromes"
    - "lempel ziv factorization may be harder than computing all runs"
    - "searching of gapped repeats and subrepetitions in a word"
    - "on primary and secondary repetitions in words"
    - "on the maximal sum of exponents of runs in a string"
    - "on maximal repetitions of arbitrary exponent"

Connected through hyperedge HE-4 (induced by source paper "fewer runs than word length"):
  with members:
    - "the runs theorem"

Connected through hyperedge HE-5 (induced by source paper "searching of gapped repeats and subrepetitions in a word"):
  with members:
    - "efficiently finding all maximal alpha gapped repeats"
    - "on primary and secondary repetitions in words"
    - "on the maximal sum of exponents of runs in a string"
    - "on maximal repetitions of arbitrary exponent"

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.FL(Formal Languages and Automata Theory)