Instruct: Identify the main and secondary category of Arxiv papers based on the titles
Query: Soft-Photon Corrections to $\bar{B} \to D \tau^{-} \bar{\nu}_{\tau}$
  Relative to $\bar{B} \to D \mu^{-} \bar{\nu}_{\mu}$
31
The categories of this paper are: ao-sci
14
The categories of this paper are: math-ph
15
The categories of this paper are: nucl-ex
36
The categories of this paper are: cmp-lg
16
The categories of this paper are: stat
17
The categories of this paper are: q-fin
18
The categories of this paper are: econ
30
The categories of this paper are: q-alg
10
The categories of this paper are: q-bio
20
The categories of this paper are: acc-phys
34
The categories of this paper are: chem-ph
6
The categories of this paper are: astro-ph
9
The categories of this paper are: nlin
22
The categories of this paper are: chao-dyn
35
The categories of this paper are: mtrl-th
1
The categories of this paper are: cs