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: "power structure in chilean news media"
  Abstract: CONICYT #TAB##R##N#63130228 #R##N#Movistar - Telefonica Chile #TAB# #R##N#Chilean government initiative CORFO #TAB##R##N#13CEE2-21592 (2013-21592-1-INNOVA PRODUCCION2013-21592-1) #R##N#Conicyt's Proyecto de Informacion Cientifica, Pluralismo en el Sistema Informativo Nacional #TAB##R##N#PLU140001 #R##N#Millenium Institute for Foundational Research on Data

Connected through hyperedge HE-1 (induced by source paper "news and the city understanding online press consumption patterns through mobile data"):
  with members:
    - "shopping mall attraction and social mixing at a city scale"
    - "a day of your days estimating individual daily journeys using mobile data to understand urban flow"
    - "the death and life of great italian cities a mobile phone data perspective"

Connected through hyperedge HE-2 (induced by source paper "understanding news outlets audience targeting patterns"):
  with members:
    - "a survey of location inference techniques on twitter"

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.SI(Social and Information Networks)