| <?xml version="1.0"?> | |
| <sparql | |
| xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#" | |
| xmlns:xs="http://www.w3.org/2001/XMLSchema#" | |
| xmlns="http://www.w3.org/2005/sparql-results#" > | |
| <head> | |
| <variable name="x"/> | |
| <variable name="v1"/> | |
| <variable name="y"/> | |
| <variable name="v2"/> | |
| </head> | |
| <results> | |
| </results> | |
| </sparql> |