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: "emotions make cities live towards mapping emotions of older adults on urban space"
  Abstract: Understanding of interaction between people and urban spaces is crucial for inclusive decision making process. Smartphones and social media can be a rich source of behavioral and declarative data about urban space, but it threatens to exclude voice of older adults. The platform proposed in the paper attempts to address this issue. A universal tagging mechanism based on the Pluchik Wheel of Emotion is proposed. Usability of the platform was tested and prospect studies are proposed.

Connected through hyperedge HE-1 (induced by source paper "older adults and crowdsourcing android tv app for evaluating tedx subtitle quality"):
  with members:
    - "guidelines towards better participation of older adults in software development processes using a new spiral method and participatory approach"
    - "from close the door to do not click and back security by design for older adults"
    - "press f1 for help participatory design for dealing with on line and real life security of older adults"
    - "turned 70 it is time to start editing wikipedia"
    - "a location based game for two generations teaching mobile technology to the elderly with the support of young volunteers"
    - "beyond participatory design towards a model for teaching seniors application design"
    - "livinglab pjait towards better urban participation of seniors"

Connected through hyperedge HE-2 (induced by source paper "guidelines towards better participation of older adults in software development processes using a new spiral method and participatory approach"):
  with members:
    - "turned 70 it is time to start editing wikipedia"
    - "a location based game for two generations teaching mobile technology to the elderly with the support of young volunteers"
    - "beyond participatory design towards a model for teaching seniors application design"
    - "livinglab pjait towards better urban participation of seniors"

Connected through hyperedge HE-3 (induced by source paper "from close the door to do not click and back security by design for older adults"):
  with members:
    - "press f1 for help participatory design for dealing with on line and real life security of older adults"
    - "turned 70 it is time to start editing wikipedia"
    - "a location based game for two generations teaching mobile technology to the elderly with the support of young volunteers"
    - "livinglab pjait towards better urban participation of seniors"

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)