Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Who killed Lilly Kane? A case study in applying knowledge graphs to
  crime fiction   We present a preliminary study of a knowledge graph created from season one
of the television show Veronica Mars, which follows the eponymous young private
investigator as she attempts to solve the murder of her best friend Lilly Kane.
We discuss various techniques for mining the knowledge graph for clues and
potential suspects. We also discuss best practice for collaboratively
constructing knowledge graphs from television shows.

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The categories of this paper are: gr-qc
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The categories of this paper are: cond-mat
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The categories of this paper are: atom-ph
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The categories of this paper are: acc-phys
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The categories of this paper are: hep-lat
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The categories of this paper are: plasm-ph
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The categories of this paper are: math
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The categories of this paper are: mtrl-th
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The categories of this paper are: quant-ph
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The categories of this paper are: nlin
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The categories of this paper are: math-ph
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The categories of this paper are: dg-ga
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The categories of this paper are: q-fin
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The categories of this paper are: stat
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The categories of this paper are: supr-con
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The categories of this paper are: chem-ph