Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Purification and Characterization of an Arene cis-Dihydrodiol
  Dehydrogenase Endowed with Broad Substrate Specificity toward Polycyclic
  Aromatic Hydrocarbon Dihydrodiols
14
The categories of this paper are: math-ph
21
The categories of this paper are: adap-org
34
The categories of this paper are: chem-ph
20
The categories of this paper are: acc-phys
25
The categories of this paper are: patt-sol
13
The categories of this paper are: quant-ph
27
The categories of this paper are: comp-gas
17
The categories of this paper are: q-fin
6
The categories of this paper are: astro-ph
9
The categories of this paper are: nlin
28
The categories of this paper are: alg-geom
26
The categories of this paper are: bayes-an
3
The categories of this paper are: physics
35
The categories of this paper are: mtrl-th
31
The categories of this paper are: ao-sci
37
The categories of this paper are: supr-con