Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Fritz Haber: The Damned Scientist   In the gallery of famous people tracing their origins to Wroc{\l}aw, few are
as controversial, as complex, or as tragic as Fritz Haber, ever more distant in
the flux of time, yet still stirring emotions. He developed a method for the
direct synthesis of ammonia from its elements and later pioneered chemical
warfare on the battlefields of the First World War.

17
The categories of this paper are: q-fin
35
The categories of this paper are: mtrl-th
25
The categories of this paper are: patt-sol
27
The categories of this paper are: comp-gas
36
The categories of this paper are: cmp-lg
33
The categories of this paper are: plasm-ph
15
The categories of this paper are: nucl-ex
23
The categories of this paper are: solv-int
18
The categories of this paper are: econ
8
The categories of this paper are: hep-ex
12
The categories of this paper are: nucl-th
22
The categories of this paper are: chao-dyn
29
The categories of this paper are: funct-an
21
The categories of this paper are: adap-org
7
The categories of this paper are: hep-th
9
The categories of this paper are: nlin