Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: The Fourteenth Data Release of the Sloan Digital Sky Survey: First
  Spectroscopic Data from the extended Baryon Oscillation Spectroscopic Survey
  and from the second phase of the Apache Point Observatory Galactic Evolution
  Experiment
21
The categories of this paper are: adap-org
7
The categories of this paper are: hep-th
35
The categories of this paper are: mtrl-th
32
The categories of this paper are: atom-ph
10
The categories of this paper are: q-bio
28
The categories of this paper are: alg-geom
11
The categories of this paper are: hep-lat
23
The categories of this paper are: solv-int
14
The categories of this paper are: math-ph
34
The categories of this paper are: chem-ph
20
The categories of this paper are: acc-phys
2
The categories of this paper are: math
0
The categories of this paper are: hep-ph
15
The categories of this paper are: nucl-ex
22
The categories of this paper are: chao-dyn
17
The categories of this paper are: q-fin