All terms related to metabolism according to a given term

Database: 
Statement: 

All terms related to metabolism according to a given term $term$ (e.g. Transporter: ABCG2). </br>List results by a number limit $number$ (e.g. 12)

Query: 
select ?title ?modifier where{ ?s<http://www.w3.org/1999/02/22-rdf-syntax-ns#type><http://bio2rdf.org/kegg_vocabulary:Metabolism> . ?s<http://purl.org/dc/terms/title>?title . ?s<http://bio2rdf.org/kegg_vocabulary:modifier> ?modifier . FILTER REGEX(?title, "??term") } Limit ??number
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