Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Nanolensed fast Radio Bursts   It is suggested that fast radio bursts can probe gravitational lensing by
clumpy dark matter objects that range in mass from $10^{-3}M_{\odot}$ to $10^2
M_{\odot}$. They may provide a more sensitive probe than observations of
lensing of objects in the Magellanic Clouds, and could find or rule out clumpy
dark matter with an extended mass spectrum.

30
The categories of this paper are: q-alg
27
The categories of this paper are: comp-gas
5
The categories of this paper are: gr-qc
8
The categories of this paper are: hep-ex
2
The categories of this paper are: math
19
The categories of this paper are: eess
7
The categories of this paper are: hep-th
10
The categories of this paper are: q-bio
21
The categories of this paper are: adap-org
16
The categories of this paper are: stat
17
The categories of this paper are: q-fin
33
The categories of this paper are: plasm-ph
28
The categories of this paper are: alg-geom
11
The categories of this paper are: hep-lat
18
The categories of this paper are: econ
20
The categories of this paper are: acc-phys