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 poor man s logic"
  Abstract: Motivated by description logics, we investigate what happens to the complexity of modal satisfiability problems if we only allow formulas built from literals, $\wedge$, $\Diamond$, and $\Box$. Previously, the only known result was that the complexity of the satisfiability problem for K dropped from PSPACE-complete to coNP-complete (Schmidt-Schauss and Smolka, 1991 and Donini et al., 1992). In this paper we show that not all modal logics behave like K. In particular, we show that the complexity of the satisfiability problem with respect to frames in which each world has at least one successor drops from PSPACE-complete to P, but that in contrast the satisfiability problem with respect to the class of frames in which each world has at most two successors remains PSPACE-complete. As a corollary of the latter result, we also solve the open problem from Donini et al.'s complexity classification of description logics (Donini et al., 1997). In the last section, we classify the complexity of the satisfiability problem for K for all other restrictions on the set of operators.

Connected through hyperedge HE-1 (induced by source paper "complexity and expressivity of branching and alternating time temporal logics with finitely many variables"):
  with members:
    - "undecidability of first order modal and intuitionistic logics with two variables and one monadic predicate letter"
    - "complexity and expressivity of propositional dynamic logics with finitely many variables"
    - "tableau based decision procedure for full coalitional multiagent temporal epistemic logic of linear tim"
    - "tableau based procedure for deciding satisfiability in the full coalitional multiagent epistemic logic"
    - "tableau based decision procedure for the multi agent epistemic logic with operators of common and distributed knowledge"

Connected through hyperedge HE-2 (induced by source paper "enumeration complexity of poor man s propositional dependence logic"):
  with members:
    - "model checking and validity in propositional and modal inclusion logics"
    - "complexity of propositional independence and inclusion logic"
    - "paradigms for parameterized enumeration"
    - "dependence and independence"
    - "complexity results for modal dependence logic"
    - "complexity of model checking for modal dependence logic"

Connected through hyperedge HE-3 (induced by source paper "kripke completeness of strictly positive modal logics over meet semilattices with operators"):
  with members:
    - "on the complexity of elementary modal logics"

Connected through hyperedge HE-4 (induced by source paper "modal logics with hard diamond free fragments"):
  with members:
    - "does treewidth help in modal satisfiability"
    - "parameterized modal satisfiability"
    - "generalized modal satisfiability"
    - "characterizing the np pspace gap in the satisfiability problem for modal logic"
    - "deciding regular grammar logics with converse through first order logic"

Connected through hyperedge HE-5 (induced by source paper "subsumption checking in conjunctive coalgebraic fixpoint logics"):
  with members:
    - "simulations and bisimulations for coalgebraic modal logics"
    - "graphical representation of covariant contravariant modal formulae"
    - "strong completeness of coalgebraic modal logics"
    - "pspace bounds for rank 1 modal logics"

Connected through hyperedge HE-6 (induced by source paper "complexity of model checking for modal dependence logic"):
  with members:
    - "complexity results for modal dependence logic"
    - "model checking ctl is almost always inherently sequential"
    - "generalized modal satisfiability"

Connected through hyperedge HE-7 (induced by source paper "complexity results for modal dependence logic"):
  with members:
    - "generalized modal satisfiability"

Connected through hyperedge HE-8 (induced by source paper "the complexity of satisfiability for fragments of hybrid logic part i"):
  with members:
    - "the complexity of generalized satisfiability for linear temporal logic"
    - "complexity of hybrid logics over transitive frames"
    - "the tractability of model checking for ltl the good the bad and the ugly fragments"
    - "hybrid branching time logics"

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)