human: Given a hyperedge-centered hypergraph: <hypergraph>, where the center hyperedge is induced by one source paper and its member nodes are the cited papers.

Details of the hypergraph:
Center hyperedge (induced by source paper "the second reactive synthesis competition syntcomp 2015"):
  Abstract: We report on the design and results of the second reactive synthesis competition (SYNTCOMP 2015). We describe our extended benchmark library, with 6 completely new sets of benchmarks, and additional challenging instances for 4 of the benchmark sets that were already used in SYNTCOMP 2014. To enhance the analysis of experimental results, we introduce an extension of our benchmark format with meta-information, including a difficulty rating and a reference size for solutions. Tools are evaluated on a set of 250 benchmarks, selected to provide a good coverage of benchmarks from all classes and difficulties. We report on changes of the evaluation scheme and the experimental setup. Finally, we describe the entrants into SYNTCOMP 2015, as well as the results of our experimental evaluation. In our analysis, we emphasize progress over the tools that participated last year.

Includes members:
  Member "the first reactive synthesis competition syntcomp 2014":
    also connected through other hyperedges:
      - Hyperedge HE-1 (induced by source paper "logics for word transductions with synthesis")
  Member "specification format for reactive synthesis problems":
    also connected through other hyperedges:
      - Hyperedge HE-2 (induced by source paper "the 4th reactive synthesis competition syntcomp 2017 benchmarks participants results")
  Member "compositional algorithms for succinct safety games":
    also connected through other hyperedges:
      - Hyperedge HE-3 (induced by source paper "the 4th reactive synthesis competition syntcomp 2017 benchmarks participants results")
  Member "sat based methods for circuit synthesis":
    also connected through other hyperedges:
      - Hyperedge HE-4 (induced by source paper "learning abstractions for program synthesis")
  Member "incremental qbf solving":
    also connected through other hyperedges:
      - Hyperedge HE-5 (induced by source paper "depqbf 6 0 a search based qbf solver beyond traditional qcdcl")
  Member "abssynthe abstract synthesis from succinct safety specifications":
    also connected through other hyperedges:
      - Hyperedge HE-6 (induced by source paper "what s hard about boolean functional synthesis")

Question: Please tell me which class the source paper 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)