Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Unification and Model Building, Astroparticle Physics and Neutrinos   This report summarises the work done during the Workshop on High Energy
Physics Phenomenology 4 (S.N.Bose National Centre for Basic Sciences, Calcutta,
India, Jan 2-14,1996) in Working Groups IV (Unification and Model Building) and
V (Astroparticle Physics and Neutrinos).

28
The categories of this paper are: alg-geom
22
The categories of this paper are: chao-dyn
26
The categories of this paper are: bayes-an
15
The categories of this paper are: nucl-ex
23
The categories of this paper are: solv-int
30
The categories of this paper are: q-alg
9
The categories of this paper are: nlin
20
The categories of this paper are: acc-phys
3
The categories of this paper are: physics
13
The categories of this paper are: quant-ph
36
The categories of this paper are: cmp-lg
34
The categories of this paper are: chem-ph
4
The categories of this paper are: cond-mat
12
The categories of this paper are: nucl-th
8
The categories of this paper are: hep-ex
29
The categories of this paper are: funct-an