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: "new guidelines for spreadsheets"
  Abstract: Current prescriptions for spreadsheet style specify modular separation of data, calcu1ation and output, based on the notion that writing a spreadsheet is like writing a computer program. Instead of a computer programming style, this article examines rules of style for text, graphics, and mathematics. Much 'common wisdom' in spreadsheets contradicts rules for these well-developed arts. A case is made here for a new style for spreadsheets that emphasises readability. The new style is described in detail with an example, and contrasted with the programming style.

Connected through hyperedge HE-1 (induced by source paper "developing a repeating model using the structured spreadsheet modelling and implementation methodology"):
  with members:
    - "structured spreadsheet modeling and implementation"
    - "measuring spreadsheet formula understandability"

Connected through hyperedge HE-2 (induced by source paper "in search of a taxonomy for classifying qualitative spreadsheet errors"):
  with members:
    - "does an awareness of differing types of spreadsheet errors aid end users in identifying spreadsheets errors"
    - "classification of spreadsheet errors"

Connected through hyperedge HE-3 (induced by source paper "teaching spreadsheets curriculum design principles"):
  with members:
    - "from error detection to behaviour observation first results from screen capture analysis"
    - "an exploratory analysis of the impact of named ranges on the debugging performance of novice users"
    - "milestones for teaching the spreadsheet program"
    - "does an awareness of differing types of spreadsheet errors aid end users in identifying spreadsheets errors"

Connected through hyperedge HE-4 (induced by source paper "spreadsheets grow up three spreadsheet engineering methodologies for large financial planning models"):
  with members:
    - "a paradigm for spreadsheet engineering methodologies"
    - "spreadsheet engineering a research framework"

Connected through hyperedge HE-5 (induced by source paper "the lookup technique to replace nested if formulas in spreadsheet programming"):
  with members:
    - "regulation and the integrity of spreadsheets in the information supply chain"
    - "the importance and criticality of spreadsheets in the city of london"

Connected through hyperedge HE-6 (induced by source paper "documenting problem solving knowledge proposed annotation design guidelines and their application to spreadsheet tools"):
  with members:
    - "it ain t what you view but the way that you view it documenting spreadsheets with excelsior semantic wikis and literate programming"

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.HC(Human-Computer Interaction)