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 "designing a mechanical tool for robots with two finger parallel grippers"):
  Abstract: This work designs a mechanical tool for robots with 2-finger parallel grippers, which extends the function of the robotic gripper without additional requirements on tool exchangers or other actuators. The fundamental kinematic structure of the mechanical tool is two symmetric parallelograms which transmit the motion of the robotic gripper to the mechanical tool. Four torsion springs are attached to the four inner joints of the two parallelograms to open the tool as the robotic gripper releases. The forces and transmission are analyzed in detail to make sure the tool reacts well with respect to the gripping forces and the spring stiffness. Also, based on the kinematic structure, variety tooltips were designed for the mechanical tool to perform various tasks. The kinematic structure can be a platform to apply various skillful gripper designs. The designed tool could be treated as a normal object and be picked up and used by automatically planned grasps. A robot may locate the tool through the AR markers attached to the tool body, grasp the tool by selecting an automatically planned grasp, and move the tool from any arbitrary pose to a specific pose to grip objects. The robot may also determine the optimal grasps and usage according to the requirements of given tasks.

Includes members:
  Member "a double jaw hand designed for multi object assembly":
    also connected through other hyperedges:
      (none)
  Member "a hand combining two simple grippers to pick up and arrange objects for assembly":
    also connected through other hyperedges:
      (none)
  Member "arm manipulation planning of tethered tools with the help of a tool balancer":
    also connected through other hyperedges:
      - Hyperedge HE-1 (induced by source paper "tethered tool manipulation planning with cable maneuvering")
  Member "closed chain manipulation of large objects by multi arm robotic systems":
    also connected through other hyperedges:
      - Hyperedge HE-2 (induced by source paper "dual arm in hand manipulation and regrasping using dexterous manipulation graphs")
  Member "a certified complete bimanual manipulation planner":
    also connected through other hyperedges:
      - Hyperedge HE-3 (induced by source paper "object placement planning and optimization for robot manipulators")
  Member "manipulation planning under changing external forces":
    also connected through other hyperedges:
      - Hyperedge HE-4 (induced by source paper "tethered tool manipulation planning with cable maneuvering")
  Member "teaching robots to do object assembly using multi modal 3d vision":
    also connected through other hyperedges:
      - Hyperedge HE-5 (induced by source paper "assembly planning by subassembly decomposition using blocking reduction")

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.RO(Robotics)