Instruct: Identify the main and secondary category of Arxiv papers based on the titles
Query: Spatially Inhomogeneous Competition between Superconductivity and the
  Charge Density Wave in YBa$_2$Cu$_3$O$_{6.67}$
31
The categories of this paper are: ao-sci
34
The categories of this paper are: chem-ph
27
The categories of this paper are: comp-gas
21
The categories of this paper are: adap-org
5
The categories of this paper are: gr-qc
22
The categories of this paper are: chao-dyn
30
The categories of this paper are: q-alg
3
The categories of this paper are: physics
20
The categories of this paper are: acc-phys
32
The categories of this paper are: atom-ph
36
The categories of this paper are: cmp-lg
2
The categories of this paper are: math
16
The categories of this paper are: stat
18
The categories of this paper are: econ
1
The categories of this paper are: cs
9
The categories of this paper are: nlin