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: "complexity of two variable dependence logic and if logic"
  Abstract: We study the two-variable fragments D^2 and IF^2 of dependence logic and independence-friendly logic. We consider the satisfiability and finite satisfiability problems of these logics and show that for D^2, both problems are NEXPTIME-complete, whereas for IF^2, the problems are undecidable. We also show that D^2 is strictly less expressive than IF^2 and that already in D^2, equicardinality of two unary predicates and infinity can be expressed (the latter in the presence of a constant symbol). This is an extended version of a publication in the proceedings of the 26th Annual IEEE Symposium on Logic in Computer Science (LICS 2011).

Connected through hyperedge HE-1 (induced by source paper "complexity thresholds in inclusion logic"):
  with members:
    - "consistent query answering for primary keys in logspace"
    - "tractability frontier of data complexity in team semantics"
    - "complexity of propositional logics in team semantics"
    - "approximation and dependence via multiteam semantics"
    - "complexity of validity for propositional dependence logics"
    - "a fragment of dependence logic capturing polynomial time"
    - "inclusion logic and fixed point logic"
    - "minimal change integrity maintenance using tuple deletions"

Connected through hyperedge HE-2 (induced by source paper "approximation and dependence via multiteam semantics"):
  with members:
    - "model checking and validity in propositional and modal inclusion logics"
    - "tractability frontier of data complexity in team semantics"
    - "a team based variant of ctl"
    - "complexity of propositional independence and inclusion logic"
    - "a van benthem theorem for modal team semantics"
    - "on independence atoms and keys"
    - "decidability of predicate logics with team semantics"
    - "context specific independence in bayesian networks"

Connected through hyperedge HE-3 (induced by source paper "tractability frontier of data complexity in team semantics"):
  with members:
    - "a fragment of dependence logic capturing polynomial time"
    - "decidable fragments of logics based on team semantics"
    - "inclusion logic and fixed point logic"
    - "dependence and independence"
    - "hierarchies in dependence logic"

Connected through hyperedge HE-4 (induced by source paper "complexity of validity for propositional dependence logics"):
  with members:
    - "complexity of propositional independence and inclusion logic"
    - "the expressive power of modal dependence logic"
    - "modal independence logic"
    - "model checking for modal dependence logic an approach through post s lattice"
    - "computational aspects of dependence logic"
    - "dependence and independence"
    - "complexity results for modal dependence logic"
    - "complexity of model checking for modal dependence logic"

Connected through hyperedge HE-5 (induced by source paper "decidable fragments of logics based on team semantics"):
  with members:
    - "inclusion logic and fixed point logic"
    - "dependence and independence"

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.LO(Logic in Computer Science)