Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Return on net sales from three companies in the manufacturing of
  fabricated metal products (except machinery and equipment)   Keywords: corporate finance, Wroc{\l}aw University of Economics, net profit
margin lub net sales profitability

28
The categories of this paper are: alg-geom
22
The categories of this paper are: chao-dyn
25
The categories of this paper are: patt-sol
29
The categories of this paper are: funct-an
32
The categories of this paper are: atom-ph
2
The categories of this paper are: math
5
The categories of this paper are: gr-qc
31
The categories of this paper are: ao-sci
26
The categories of this paper are: bayes-an
15
The categories of this paper are: nucl-ex
1
The categories of this paper are: cs
21
The categories of this paper are: adap-org
3
The categories of this paper are: physics
6
The categories of this paper are: astro-ph
13
The categories of this paper are: quant-ph
14
The categories of this paper are: math-ph