Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Sign reversal superconducting gaps revealed by phase referenced
  quasi-particle interference of impurity induced bound states in
  (Li$_{1-x}$Fe$_x$)OHFe$_{1-y}$Zn$_y$Se
8
The categories of this paper are: hep-ex
25
The categories of this paper are: patt-sol
34
The categories of this paper are: chem-ph
36
The categories of this paper are: cmp-lg
12
The categories of this paper are: nucl-th
27
The categories of this paper are: comp-gas
1
The categories of this paper are: cs
16
The categories of this paper are: stat
32
The categories of this paper are: atom-ph
10
The categories of this paper are: q-bio
29
The categories of this paper are: funct-an
5
The categories of this paper are: gr-qc
37
The categories of this paper are: supr-con
6
The categories of this paper are: astro-ph
28
The categories of this paper are: alg-geom
11
The categories of this paper are: hep-lat