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: "realizability algebras iii some examples"
  Abstract: We use the technique of "classical realizability" to build new models of ZF + DC in which R is not well ordered. This gives new relative consistency results, probably not obtainable by forcing. This gives also a new method to get programs from proofs of arithmetical formulas with dependent choice.

Connected through hyperedge HE-1 (induced by source paper "a constructive proof of dependent choice in classical arithmetic via memoization"):
  with members:
    - "a sequent calculus with dependent types for classical arithmetic"
    - "an interpretation of system f through bar recursion"
    - "classical realizability as a classifier for nondeterminism"
    - "bar recursion in classical realisability dependent choice and continuum hypothesis"
    - "a classical realizability model for a semantical value restriction"
    - "bar recursion and products of selection functions"
    - "realizability algebras a program to well order r"
    - "existential witness extraction in classical realizability and via a negative translation"

Connected through hyperedge HE-2 (induced by source paper "classical realizability as a classifier for nondeterminism"):
  with members:
    - "on the structure of classical realizability models of zf"
    - "realizability algebras a program to well order r"

Connected through hyperedge HE-3 (induced by source paper "bar recursion in classical realisability dependent choice and continuum hypothesis"):
  with members:
    - "on the structure of classical realizability models of zf"
    - "realizability algebras a program to well order r"

Connected through hyperedge HE-4 (induced by source paper "on the structure of classical realizability models of zf"):
  with members:
    - "bar recursion in classical realisability dependent choice and well ordering of r"
    - "realizability algebras a program to well order r"

Connected through hyperedge HE-5 (induced by source paper "bar recursion in classical realisability dependent choice and well ordering of r"):
  with members:
    - "on the structure of classical realizability models of zf"
    - "realizability algebras a program to well order r"

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)