Title, reference, symbol and subtype of a gene

Database: 
Statement: 

Display title, reference, symbol and subtype of a gene $Gene$ (e.g. EGFR). Display a maximum of $number$ (e.g. 100) results.

(Please, try to execute several times due to GenBank endpoint problems)

Query: 
select distinct ?label ?Title ?Xref ?subType ?Symbol where{ ?s<http://www.w3.org/1999/02/22-rdf-syntax-ns#type><http://bio2rdf.org/genbank#Sequence> . ?s<http://www.w3.org/2000/01/rdf-schema#label>?label . ?s<http://purl.org/dc/elements/1.1/title>?Title . ?s<http://bio2rdf.org/bio2rdf#xRef>?Xref . ?s<http://bio2rdf.org/bio2rdf#xSymbol>?Symbol . ?s<http://bio2rdf.org/bio2rdf#subType>?subType . ?label bif:contains "'??Gene'" .} Limit ??number