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: "two domain dna strand displacement"
  Abstract: We investigate the computing power of a restricted class of DNA strand displacement structures: those that are made of double strands with nicks (interruptions) in the top strand. To preserve this structural invariant, we impose restrictions on the single strands they interact with: we consider only two-domain single strands consisting of one toehold domain and one recognition domain. We study fork and join signal-processing gates based on these structures, and we show that these systems are amenable to formalization and to mechanical verification.

Connected through hyperedge HE-1 (induced by source paper "a reaction network scheme which implements inference and learning for hidden markov models"):
  with members:
    - "a reaction network scheme which implements the em algorithm"
    - "a scheme for molecular computation of maximum likelihood estimators for log linear models"
    - "deterministic function computation with chemical reaction networks"

Connected through hyperedge HE-2 (induced by source paper "semi quantitative abstraction and analysis of chemical reaction networks"):
  with members:
    - "model checking gene regulatory networks"
    - "fluid model checking"
    - "the computational power of population protocols"

Connected through hyperedge HE-3 (induced by source paper "robust chemical circuits"):
  with members:
    - "from electric circuits to chemical networks"
    - "verifying chemical reaction network implementations a pathway decomposition approach"
    - "robust biomolecular finite automata"
    - "timing in chemical reaction networks"

Connected through hyperedge HE-4 (induced by source paper "dna based chemical compiler"):
  with members:
    - "dnacloud a potential tool for storing big data on dna"

Connected through hyperedge HE-5 (induced by source paper "robust detection in leak prone population protocols"):
  with members:
    - "spreading a confirmed rumor a case for oscillatory dynamics"
    - "minimizing message size in stochastic communication patterns fast self stabilizing protocols with 3 bits"
    - "simple and optimal randomized fault tolerant rumor spreading"
    - "robust stochastic chemical reaction networks and bounded tau leaping"

Connected through hyperedge HE-6 (induced by source paper "verifying chemical reaction network implementations a pathway decomposition approach"):
  with members:
    - "a domain level dna strand displacement reaction enumerator allowing arbitrary non pseudoknotted secondary structures"

Connected through hyperedge HE-7 (induced by source paper "programming discrete distributions with chemical reaction networks"):
  with members:
    - "deterministic function computation with chemical reaction networks"
    - "the computational power of population protocols"

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)