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 "normalization for planar string diagrams and a quadratic equivalence algorithm"):
  Abstract: In the graphical calculus of planar string diagrams, equality is generated by exchange moves, which swap the heights of adjacent vertices. We show that left- and right-handed exchanges each give strongly normalizing rewrite strategies for connected string diagrams. We use this result to give a linear-time solution to the equivalence problem in the connected case, and a quadratic solution in the general case. We also giv a stronger proof of the Joyal-Street coherence theorem, settling Selinger's conjecture on recumbent isotopy.

Includes members:
  Member "diagrammatic semantics for digital circuits":
    also connected through other hyperedges:
      - Hyperedge HE-1 (induced by source paper "differentiable causal computations via delayed trace")
  Member "globular an online proof assistant for higher dimensional rewriting":
    also connected through other hyperedges:
      - Hyperedge HE-2 (induced by source paper "knowledge representation in bicategories of relations")
  Member "a compositional approach to economic game theory":
    also connected through other hyperedges:
      - Hyperedge HE-3 (induced by source paper "compositional deep learning")
  Member "towards 3 dimensional rewriting theory":
    also connected through other hyperedges:
      - Hyperedge HE-4 (induced by source paper "directed homotopy in non positively curved spaces")
  Member "testing graph isotopy on surfaces":
    also connected through other hyperedges:
      (none)

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)