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: "mapping the object role modeling language orm2 into description logic language dlrifd"
  Abstract: In recent years, several efforts have been made to enhance conceptual data modelling with automated reasoning to improve the model's quality and derive implicit information. One approach to achieve this in implementations, is to constrain the language. Advances in Description Logics can help choosing the right language to have greatest expressiveness yet to remain within the decidable fragment of first order logic to realise a workable implementation with good performance using DL reasoners. The best fit DL language appears to be the ExpTime-complete DLRifd. To illustrate trade-offs and highlight features of the modelling languages, we present a precise transformation of the mappable features of the very expressive (undecidable) ORM/ORM2 conceptual data modelling languages to exactly DLRifd. Although not all ORM2 features can be mapped, this is an interesting fragment because it has been shown that DLRifd can also encode UML Class Diagrams and EER, and therefore can foster interoperation between conceptual data models and research into ontological aspects of the modelling languages.

Connected through hyperedge HE-1 (induced by source paper "evidence based lean logic profiles for conceptual data modelling languages"):
  with members:
    - "kf metamodel formalization"
    - "design guidelines for domain specific languages"
    - "the dl lite family and relations"
    - "complexity results and practical algorithms for logics in knowledge representation"
    - "unifying class based representation formalisms"

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)