Display all chemical compounds and disease associations stored in CTD database

Database: 
Statement: 
Display all chemical compounds and disease associations stored in CTD database.
A number results per page $number$ (e.g.100)
Query: 
select ?s ?label where{ ?s a <http://bio2rdf.org/ctd_vocabulary:Chemical-Disease-Association> . ?s<http://www.w3.org/2000/01/rdf-schema#label>?label . } limit ??number
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