Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Comment on "A continuous topological phase transition between 1D
  antiferromagnetic spin-1 boson superfluids" by W. Ji and X.-G. Wen   This is a comment on the preprint arXiv:1809.07771v2 by W. Ji and X.-G. Wen.

30
The categories of this paper are: q-alg
36
The categories of this paper are: cmp-lg
0
The categories of this paper are: hep-ph
10
The categories of this paper are: q-bio
17
The categories of this paper are: q-fin
20
The categories of this paper are: acc-phys
21
The categories of this paper are: adap-org
31
The categories of this paper are: ao-sci
7
The categories of this paper are: hep-th
35
The categories of this paper are: mtrl-th
5
The categories of this paper are: gr-qc
26
The categories of this paper are: bayes-an
34
The categories of this paper are: chem-ph
13
The categories of this paper are: quant-ph
18
The categories of this paper are: econ
28
The categories of this paper are: alg-geom