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: "how many vertex locations can be arbitrarily chosen when drawing planar graphs"
  Abstract: It is proven that every set $S$ of distinct points in the plane with cardinality $\lceil \frac{\sqrt{\log_2 n}-1}{4} \rceil$ can be a subset of the vertices of a crossing-free straight-line drawing of any planar graph with $n$ vertices. It is also proven that if $S$ is restricted to be a one-sided convex point set, its cardinality increases to $\lceil \sqrt[3]{n} \rceil$. The proofs are constructive and give rise to O(n)-time drawing algorithms. As a part of our proofs, we show that every maximal planar graph contains a large induced biconnected outerplanar graphs and a large induced outerpath (an outerplanar graph whose weak dual is a path).

Connected through hyperedge HE-1 (induced by source paper "the utility of untangling"):
  with members:
    - "superpatterns and universal point sets"
    - "sefe with no mapping via large induced outerplane graphs in plane graphs"
    - "on universal point sets for planar graphs"
    - "simultaneous embedding of planar graphs"
    - "untangling planar graphs from a specified vertex position hard cases"
    - "untangling polygons and graphs"
    - "on a tree and a path with no geometric simultaneous embedding"
    - "untangling a planar graph"

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.CG(Computational Geometry)