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 "standing on the shoulders of their peers success factors for massive cooperation among children creating open source animations and games on their smartphones"):
  Abstract: We developed a website for kids where they can share new as well as remixed animations and games, e.g., interactive music videos, which they created on their smartphones or tablets using a visual "LEGO-style" programming environment called Catroid. Online communities for children like our website have unique requirements, and keeping the commitment of kids on a high level is a continuous challenge. For instance, one key motivator for kids is the ability to entertain their friends. Another success factor is the ability to learn from and cooperate with other children. In this short position paper we attempt at identifying the requirements for the success of such an online community, both from the point of view of the kids as well as of their parents, and at finding ways to make it attractive for both.

Includes members:
  Member "responses to remixing on a social media sharing website":
    also connected through other hyperedges:
      - Hyperedge HE-1 (induced by source paper "remixing as a pathway to computational thinking")
  Member "catroid a mobile visual programming system for children":
    also connected through other hyperedges:
      (none)
  Member "computers can t give credit how automatic attribution falls short in an online remixing community":
    also connected through other hyperedges:
      - Hyperedge HE-2 (induced by source paper "botivist calling volunteers to action using online bots")

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.CY(Computers and Society)