Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: A Description Logic Primer   This paper provides a self-contained first introduction to description logics
(DLs). The main concepts and features are explained with examples before syntax
and semantics of the DL SROIQ are defined in detail. Additional sections review
light-weight DL languages, discuss the relationship to the Web Ontology
Language OWL and give pointers to further reading.

19
The categories of this paper are: eess
5
The categories of this paper are: gr-qc
18
The categories of this paper are: econ
32
The categories of this paper are: atom-ph
26
The categories of this paper are: bayes-an
0
The categories of this paper are: hep-ph
37
The categories of this paper are: supr-con
27
The categories of this paper are: comp-gas
20
The categories of this paper are: acc-phys
16
The categories of this paper are: stat
34
The categories of this paper are: chem-ph
7
The categories of this paper are: hep-th
22
The categories of this paper are: chao-dyn
21
The categories of this paper are: adap-org
23
The categories of this paper are: solv-int
25
The categories of this paper are: patt-sol