Instruct: Identify the main and secondary category of Arxiv papers based on the titles
Query: A Cautionary Tale: MARVELS Brown Dwarf Candidate Reveals Itself To Be A
  Very Long Period, Highly Eccentric Spectroscopic Stellar Binary
9
The categories of this paper are: nlin
2
The categories of this paper are: math
19
The categories of this paper are: eess
33
The categories of this paper are: plasm-ph
11
The categories of this paper are: hep-lat
16
The categories of this paper are: stat
29
The categories of this paper are: funct-an
22
The categories of this paper are: chao-dyn
18
The categories of this paper are: econ
15
The categories of this paper are: nucl-ex
36
The categories of this paper are: cmp-lg
30
The categories of this paper are: q-alg
3
The categories of this paper are: physics
21
The categories of this paper are: adap-org
7
The categories of this paper are: hep-th
12
The categories of this paper are: nucl-th