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: "the complexity of satisfiability for fragments of hybrid logic part i"
  Abstract: Abstract   The satisfiability problem of hybrid logics with the downarrow binder is known to be undecidable. This initiated a research program on decidable and tractable fragments.  In this paper, we investigate the effect of restricting the propositional part of the language on decidability and on the complexity of the satisfiability problem over arbitrary, transitive, total frames, and frames based on equivalence relations. We also consider different sets of modal and hybrid operators. We trace the border of decidability and give the precise complexity of most fragments, in particular for all fragments including negation. For the monotone fragments, we are able to distinguish the easy from the hard cases, depending on the allowed set of operators.

Connected through hyperedge HE-1 (induced by source paper "parameterised complexity of abduction in schaefer s framework"):
  with members:
    - "parameterised complexity for abduction"
    - "analysis of boolean functions"
    - "parameterized exact and approximation algorithms for maximum k set cover and related satisfiability problems"
    - "paradigms for parameterized enumeration"
    - "generalized satisfiability for the description logic alc"
    - "complexity classifications for propositional abduction in post s framework"
    - "complexity of propositional abduction for restricted sets of boolean functions"
    - "the complexity of generalized satisfiability for linear temporal logic"

Connected through hyperedge HE-2 (induced by source paper "generalized satisfiability for the description logic alc"):
  with members:
    - "the complexity of satisfiability for sub boolean fragments of alc"
    - "the dl lite family and relations"
    - "the complexity of propositional implication"
    - "generalized modal satisfiability"
    - "the complexity of generalized satisfiability for linear temporal logic"

Connected through hyperedge HE-3 (induced by source paper "on the applicability of post s lattice"):
  with members:
    - "the complexity of reasoning for fragments of autoepistemic logic"
    - "the complexity of propositional implication"
    - "the complexity of reasoning for fragments of default logic"
    - "generalized modal satisfiability"
    - "the complexity of generalized satisfiability for linear temporal logic"
    - "the tractability of model checking for ltl the good the bad and the ugly fragments"

Connected through hyperedge HE-4 (induced by source paper "the complexity of satisfiability for sub boolean fragments of alc"):
  with members:
    - "the complexity of generalized satisfiability for linear temporal logic"

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)