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: "thinging ethics for software engineers"
  Abstract: Ethical systems are usually described as principles for distinguishing right from wrong and forming beliefs about proper conduct. Ethical topics are complex, with excessively verbose accounts of mental models and intensely ingrained philosophical assumptions. From practical experience, in teaching ethics for software engineering students, an explanation of ethics alone often cannot provide insights of behavior and thought for students. Additionally, it seems that there has been no exploration into the development of a conceptual presentation of ethics that appeals to computer engineers. This is particularly clear in the area of software engineering, which focuses on software and associated tools such as algorithms, diagramming, documentation, modeling and design as applied to various types of data and conceptual artifacts. It seems that software engineers look at ethical materials as a collection of ideas and notions that lack systemization and uniformity. Accordingly, this paper explores a thinging schematization for ethical theories that can serve a role similar to that of modeling languages (e.g., UML). In this approach, thinging means actualization (existence, presence, being) of things and mechanisms that define a boundary around some region of ethically related reality, separating it from everything else. The resultant diagrammatic representation then developed to model the process of making ethical decisions in that region.

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)