Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Structural properties and phase diagram of the $La(Fe_{1-x}Ru_x)AsO$
  system   Structural refinement, lattice microstrain and spontaneous strain analyses
have been carried out and a phase diagram has been drawn.

36
The categories of this paper are: cmp-lg
24
The categories of this paper are: dg-ga
25
The categories of this paper are: patt-sol
5
The categories of this paper are: gr-qc
3
The categories of this paper are: physics
10
The categories of this paper are: q-bio
11
The categories of this paper are: hep-lat
23
The categories of this paper are: solv-int
21
The categories of this paper are: adap-org
0
The categories of this paper are: hep-ph
17
The categories of this paper are: q-fin
22
The categories of this paper are: chao-dyn
1
The categories of this paper are: cs
32
The categories of this paper are: atom-ph
15
The categories of this paper are: nucl-ex
16
The categories of this paper are: stat