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: "arm manipulation planning of tethered tools with the help of a tool balancer"
  Abstract: Robotic manipulation of tethered tools is widely seen in robotic work cells. They may cause excess strain on the tool's cable or undesired entanglements with the robot's arms. This paper presents a manipulation planner with cable orientation constraints for tethered tools suspended by tool balancers. The planner uses orientation constraints to limit the bending of the balancer's cable while the robot manipulates a tool and places it in a desired pose. The constraints reduce entanglements and decrease the torque induced by the cable on the robot joints. Simulation and real-world experiments show that the constrained planner can successfully plan robot motions for the manipulation of suspended tethered tools preventing the robot from damaging the cable or getting its arms entangled, potentially avoiding accidents. The planner is expected to play promising roles in manufacturing cells.

Connected through hyperedge HE-1 (induced by source paper "tethered tool manipulation planning with cable maneuvering"):
  with members:
    - "reinforcement learning in topology based representation for human body movement with whole arm manipulation"
    - "learning sampling distributions for robot motion planning"
    - "manipulation planning under changing external forces"
    - "deep visual foresight for planning robot motion"
    - "developing and comparing single arm and dual arm regrasp"
    - "backward forward search for manipulation planning"
    - "finding a needle in an exponential haystack discrete rrt for exploration of implicit roadmaps in multi robot motion planning"

Connected through hyperedge HE-2 (induced by source paper "designing a mechanical tool for robots with two finger parallel grippers"):
  with members:
    - "a double jaw hand designed for multi object assembly"
    - "a hand combining two simple grippers to pick up and arrange objects for assembly"
    - "closed chain manipulation of large objects by multi arm robotic systems"
    - "a certified complete bimanual manipulation planner"
    - "manipulation planning under changing external forces"
    - "teaching robots to do object assembly using multi modal 3d vision"

Connected through hyperedge HE-3 (induced by source paper "combined task and motion planning for a dual arm robot to use a suction cup tool"):
  with members:
    - "designing a mechanical tool for robots with two finger parallel grippers"
    - "dual arm assembly planning considering gravitational constraints"
    - "towards blended reactive planning and acting using behavior trees"

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.RO(Robotics)