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: "the challenge and promise of software citation for credit identification discovery and reuse"
  Abstract: In this article, we present the challenge of software citation as a method to ensure credit for and identification, discovery, and reuse of software in scientific and engineering research. We discuss related work and key challenges/research directions, including suggestions for metadata necessary for software citation.

Connected through hyperedge HE-1 (induced by source paper "software search is not a science even among scientists a survey of how scientists and engineers find software"):
  with members:
    - "looking at software sustainability and productivity challenges from nsf"
    - "initial findings from a study of best practices and models for cyberinfrastructure software sustainability"
    - "swmath a new information service for mathematical software"
    - "the numpy array a structure for efficient numerical computation"

Connected through hyperedge HE-2 (induced by source paper "theory and practice of data citation"):
  with members:
    - "new model for datasets citation and extraction reproducibility in vamdc"
    - "analyzing data citation practices using the data citation index"
    - "communication is bounded by root of rank"
    - "micropublications a semantic model for claims evidence arguments and annotations in biomedical communications"

Connected through hyperedge HE-3 (induced by source paper "software search is not a science even among scientists"):
  with members:
    - "lightning talk report on software metrics for research software"
    - "looking at software sustainability and productivity challenges from nsf"
    - "initial findings from a study of best practices and models for cyberinfrastructure software sustainability"
    - "swmath a new information service for mathematical software"
    - "the numpy array a structure for efficient numerical computation"

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.CY(Computers and Society)