<Circles xmlns="http://schemas.openxmlformats.org/Circles/v1" xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006" xmlns:v2="http://schemas.openxmlformats.org/Circles/v2">
  <Circle Center="0,0" Radius="20" Color="Blue"/>
  <Circle Center="25,0" Radius="20" Color="Black"/>
  <Circle Center="50,0" Radius="20" Color="Red"/>
  <Circle Center="13,0" Radius="20" Color="Yellow"/>
  <Circle Center="38,0" Radius="20" Color="Green" v2:Opacity="0.5"/>
</Circles>