Instruct: Identify the main and secondary category of Arxiv papers based on the titles
Query: Structure Functions are not Parton Probabilities
3
The categories of this paper are: physics
7
The categories of this paper are: hep-th
33
The categories of this paper are: plasm-ph
9
The categories of this paper are: nlin
37
The categories of this paper are: supr-con
28
The categories of this paper are: alg-geom
12
The categories of this paper are: nucl-th
17
The categories of this paper are: q-fin
22
The categories of this paper are: chao-dyn
24
The categories of this paper are: dg-ga
34
The categories of this paper are: chem-ph
19
The categories of this paper are: eess
29
The categories of this paper are: funct-an
2
The categories of this paper are: math
1
The categories of this paper are: cs
4
The categories of this paper are: cond-mat