Complete the following sentence: Aschwin and his older brother, Olaf, a freestyle swimmer, represented Spain at the 2004 Summer Olympics. 2004 Olympics, Aschwin was eliminated in the qualifying heats of the 100 m and 200 m backstroke. Since 2004, Aschwin has continued to swim internationally for Spain; however, Olaf started swimming for the Netherlands at the age of
2006 European Championships.