Author information according to a given Pubmed id

Database: 
Statement: 
Display all article authors and titles according to the specified Pubmed $id$ (e.g., 21513509).
Query: 
SELECT distinct ?foreName ?lastName ?author WHERE { <http://linkedlifedata.com/resource/pubmed/id/??id> <http://linkedlifedata.com/resource/pubmed/author> ?author . ?author<http://linkedlifedata.com/resource/pubmed/foreName> ?foreName . ?author <http://linkedlifedata.com/resource/pubmed/lastName> ?lastName . }