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: "verifying temporal properties of reactive systems by transformation"
  Abstract: We show how program transformation techniques can be used for the verification of both safety and liveness properties of reactive systems. In particular, we show how the program transformation technique distillation can be used to transform reactive systems specified in a functional language into a simplified form that can subsequently be analysed to verify temporal properties of the systems. Example systems which are intended to model mutual exclusion are analysed using these techniques with respect to both safety (mutual exclusion) and liveness (non-starvation), with the errors they contain being correctly identified.

Connected through hyperedge HE-1 (induced by source paper "verification of programs via intermediate interpretation"):
  with members:
    - "generating counterexamples for model checking by transformation"
    - "generating counterexamples for model checking by transformation"
    - "turchin s relation for call by name computations a formal approach"
    - "proving correctness of imperative programs by linearizing constrained horn clauses"
    - "generalization strategies for the verification of infinite state systems"
    - "positive supercompilation for a higher order call by value language"

Connected through hyperedge HE-2 (induced by source paper "generating counterexamples for model checking by transformation"):
  with members:
    - "decomposition by tree dimension in horn clause verification"
    - "decomposition by tree dimension in horn clause verification"

Connected through hyperedge HE-3 (induced by source paper "generating counterexamples for model checking by transformation"):
  with members:
    - "decomposition by tree dimension in horn clause verification"
    - "decomposition by tree dimension in horn clause verification"

Connected through hyperedge HE-4 (induced by source paper "finite countermodel based verification for program transformation a case study"):
  with members:
    - "recompression a simple and powerful technique for word equations"
    - "positive supercompilation for a higher order call by value language"
    - "detecting unsolvable queries for definite logic programs"

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)