Select all human UniProt entries with a sequence variant that leads to a feature (from Uniprot's page)

Statement: 
Select all human UniProt entries with a sequence variant that leads to a feature $feature$(e.g.loss of function')
A limit of results per page $number$ (e.g.10)
Query: 
PREFIX up:<http://purl.uniprot.org/core/> PREFIX rdfs:<http://www.w3.org/2000/01/rdf-schema#> SELECT ?protein ?text WHERE { ?protein a up:Protein . ?protein up:organism <http://purl.uniprot.org/taxonomy/9606> . ?protein up:annotation ?annotation . ?annotation a up:Natural_Variant_Annotation . ?annotation rdfs:comment ?text . FILTER (CONTAINS(?text, '??feature')) } limit ??number
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