Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Symbiotic Miras vs. Planetary Nebulae in the Near Infrared   While symbiotic Miras and planetary nebulae are hard to distinguish by
optical spectroscopy, their near infrared colors differ. We propose the near
infrared two-color diagram to be an excellent tool to easily distinguish these
two classes of objects.

27
The categories of this paper are: comp-gas
4
The categories of this paper are: cond-mat
14
The categories of this paper are: math-ph
23
The categories of this paper are: solv-int
10
The categories of this paper are: q-bio
13
The categories of this paper are: quant-ph
3
The categories of this paper are: physics
35
The categories of this paper are: mtrl-th
1
The categories of this paper are: cs
0
The categories of this paper are: hep-ph
29
The categories of this paper are: funct-an
7
The categories of this paper are: hep-th
20
The categories of this paper are: acc-phys
22
The categories of this paper are: chao-dyn
21
The categories of this paper are: adap-org
2
The categories of this paper are: math