human: Given a hyperedge-centered hypergraph: <hypergraph>, where the center hyperedge is induced by one source paper and its member nodes are the cited papers.

Details of the hypergraph:
Center hyperedge (induced by source paper "the height of piecewise testable languages and the complexity of the logic of subwords"):
  Abstract: The height of a piecewise-testable language $L$ is the maximum length of the words needed to define $L$ by excluding and requiring given subwords. The height of $L$ is an important descriptive complexity measure that has not yet been investigated in a systematic way. This paper develops a series of new techniques for bounding the height of finite languages and of languages obtained by taking closures by subwords, superwords and related operations. #R##N#As an application of these results, we show that $\text{FO}^2(A^*,\sqsubseteq)$, the two-variable fragment of the first-order logic of sequences with the subword ordering, can only express piecewise-testable properties and has elementary complexity.

Includes members:
  Member "piecewise testable languages and nondeterministic automata":
    also connected through other hyperedges:
      - Hyperedge HE-1 (induced by source paper "partially ordered automata and piecewise testability")
  Member "on the state complexity of closures and interiors of regular languages with subwords and superwords":
    also connected through other hyperedges:
      - Hyperedge HE-2 (induced by source paper "well quasiorders and hierarchy theory")
  Member "decidability in the logic of subsequences and supersequences":
    also connected through other hyperedges:
      - Hyperedge HE-3 (induced by source paper "languages ordered by the subword order")
  Member "on the index of simon s congruence for piecewise testability":
    also connected through other hyperedges:
      - Hyperedge HE-4 (induced by source paper "scattered factor universality of words")
  Member "an approach to computing downward closures":
    also connected through other hyperedges:
      - Hyperedge HE-5 (induced by source paper "reachability in vector addition systems is primitive recursive in fixed dimension")
  Member "the height of piecewise testable languages with applications in logical complexity":
    also connected through other hyperedges:
      - Hyperedge HE-6 (induced by source paper "scattered factor universality of words")
  Member "finite automata for the sub and superword closure of cfls descriptional and computational complexity":
    also connected through other hyperedges:
      - Hyperedge HE-7 (induced by source paper "the ideal approach to computing closed subsets in well quasi orderings")
  Member "recompression a simple and powerful technique for word equations":
    also connected through other hyperedges:
      - Hyperedge HE-8 (induced by source paper "a survey on string constraint solving")

Question: Please tell me which class the source paper 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)