<?xml version="1.0"?>
<sparql xmlns="http://www.w3.org/2005/sparql-results#">
  <head>
    <variable name="a"/>
    <variable name="b"/>
  </head>
  <results>
    <result>
      <binding name="a"><uri>http://example.org/test1</uri></binding>
      <binding name="b"><uri>http://example.org/test1</uri></binding>
    </result>
    <result>
      <binding name="a"><uri>http://example.org/test1</uri></binding>
      <binding name="b"><uri>http://example.org/test2</uri></binding>
    </result>
    <result>
      <binding name="a"><uri>http://example.org/test2</uri></binding>
      <binding name="b"><uri>http://example.org/test1</uri></binding>
    </result>
    <result>
      <binding name="a"><uri>http://example.org/test2</uri></binding>
      <binding name="b"><uri>http://example.org/test2</uri></binding>
    </result>
  </results>
</sparql>

