Instruct: Identify the main and secondary category of Arxiv papers based on the titles
Query: Investigations on the Foundation and Possible Modifications of the
  Gerasimov-Drell-Hearn Sum Rule
24
The categories of this paper are: dg-ga
7
The categories of this paper are: hep-th
4
The categories of this paper are: cond-mat
22
The categories of this paper are: chao-dyn
25
The categories of this paper are: patt-sol
35
The categories of this paper are: mtrl-th
17
The categories of this paper are: q-fin
30
The categories of this paper are: q-alg
12
The categories of this paper are: nucl-th
10
The categories of this paper are: q-bio
32
The categories of this paper are: atom-ph
26
The categories of this paper are: bayes-an
21
The categories of this paper are: adap-org
2
The categories of this paper are: math
16
The categories of this paper are: stat
34
The categories of this paper are: chem-ph