Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Reply to "Comment on 'Unconventional enhancement of ferromagnetic
  interactions in Cd-doped GdFe$_2$Zn$_{20}$ single crystals studied by ESR and
  $^{57}$Fe M\"ossbauer spectroscopies' "   The authors reply to the Comment arXiv:2104.03770 by P. Canfield et. al.

27
The categories of this paper are: comp-gas
1
The categories of this paper are: cs
6
The categories of this paper are: astro-ph
2
The categories of this paper are: math
12
The categories of this paper are: nucl-th
22
The categories of this paper are: chao-dyn
34
The categories of this paper are: chem-ph
18
The categories of this paper are: econ
19
The categories of this paper are: eess
13
The categories of this paper are: quant-ph
3
The categories of this paper are: physics
26
The categories of this paper are: bayes-an
37
The categories of this paper are: supr-con
30
The categories of this paper are: q-alg
31
The categories of this paper are: ao-sci
16
The categories of this paper are: stat