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 "monads need not be endofunctors"):
  Abstract: We introduce a generalization of monads, called relative monads, allowing for#N#underlying functors between different categories. Examples include#N#finite-dimensional vector spaces, untyped and typed lambda-calculus syntax and#N#indexed containers. We show that the Kleisli and Eilenberg-Moore constructions#N#carry over to relative monads and are related to relative adjunctions. Under#N#reasonable assumptions, relative monads are monoids in the functor category#N#concerned and extend to monads, giving rise to a coreflection between relative#N#monads and monads. Arrows are also an instance of relative monads.

Includes members:
  Member "modules over relative monads for syntax and semantics":
    also connected through other hyperedges:
      - Hyperedge HE-1 (induced by source paper "reduction monads and their signatures")
  Member "coherence for skew monoidal categories":
    also connected through other hyperedges:
      - Hyperedge HE-2 (induced by source paper "the sequent calculus of skew monoidal categories")
  Member "denotation of contextual modal type theory cmtt syntax and meta programming":
    also connected through other hyperedges:
      - Hyperedge HE-3 (induced by source paper "foundations of a live data exploration environment")
  Member "initiality for typed syntax and semantics":
    also connected through other hyperedges:
      - Hyperedge HE-4 (induced by source paper "full abstraction for fair testing in ccs expanded version")

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.PL(Programming Languages)