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 "universal structures and the logic of forbidden patterns"):
  Abstract: Forbidden Patterns Problems (FPPs) are a proper generalisation of Constraint#N#Satisfaction Problems (CSPs). However, we show that when the input is connected#N#and belongs to a class which has low tree-depth decomposition (e.g. structure#N#of bounded degree, proper minor closed class and more generally class of#N#bounded expansion) any FPP becomes a CSP. This result can also be rephrased in#N#terms of expressiveness of the logic MMSNP, introduced by Feder and Vardi in#N#relation with CSPs. Our proof generalises that of a recent paper by Nesetril#N#and Ossona de Mendez. Note that our result holds in the general setting of#N#problems over arbitrary relational structures (not just for graphs).

Includes members:
  Member "datalog and constraint satisfaction with infinite templates":
    also connected through other hyperedges:
      - Hyperedge HE-1 (induced by source paper "asnp a tame fragment of existential second order logic")
  Member "np by means of lifts and shadows":
    also connected through other hyperedges:
      (none)

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)