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: "angle monotone paths in non obtuse triangulations"
  Abstract: We reprove a result of Dehkordi, Frati, and Gudmundsson: every two vertices in a non-obtuse triangulation of a point set are connected by an angle-monotone path--an xy-monotone path in an appropriately rotated coordinate system. We show that this result cannot be extended to angle-monotone spanning trees, but can be extended to boundary-rooted spanning forests. The latter leads to a conjectural edge-unfolding of sufficiently shallow polyhedral convex caps.

Connected through hyperedge HE-1 (induced by source paper "on the area requirements of planar greedy drawings of triconnected planar graphs"):
  with members:
    - "gabriel triangulations and angle monotone graphs local routing and recognition"
    - "on planar greedy drawings of 3 connected planar graphs"
    - "on self approaching and increasing chord drawings of 3 connected planar graphs"
    - "increasing chord graphs on point sets"
    - "self approaching graphs"
    - "euclidean greedy drawings of trees"
    - "succinct greedy geometric routing in the euclidean plane"

Connected through hyperedge HE-2 (induced by source paper "uniform 2d monotone minimum spanning graphs"):
  with members:
    - "angle monotone graphs construction and local routing"
    - "drawing a rooted tree as a rooted y monotone minimum spanning tree"
    - "simple compact monotone tree drawings"
    - "optimal monotone drawings of trees"
    - "rooted uniform monotone minimum spanning trees"
    - "gabriel triangulations and angle monotone graphs local routing and recognition"
    - "on self approaching and increasing chord drawings of 3 connected planar graphs"
    - "increasing chord graphs on point sets"

Connected through hyperedge HE-3 (induced by source paper "angle monotone graphs construction and local routing"):
  with members:
    - "gabriel triangulations and angle monotone graphs local routing and recognition"
    - "optimal local routing on delaunay triangulations defined by empty equilateral triangles"
    - "increasing chord graphs on point sets"
    - "on the stretch factor of convex delaunay graphs"

Connected through hyperedge HE-4 (induced by source paper "edge unfolding nearly flat convex caps"):
  with members:
    - "addendum to edge unfolding nearly flat convex caps"
    - "unfolding convex polyhedra via radially monotone cut trees"

Connected through hyperedge HE-5 (induced by source paper "addendum to edge unfolding nearly flat convex caps"):
  with members:
    - "edge unfolding nearly flat convex caps"

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)