sample.svg

<?xml version="1.0"?>
<svg xmlns="http://www.w3.org/2000/svg" width="800" height="800">
  <g style="fill-opacity:0.7;">
    <circle cx="6.5cm" cy="2cm" r="100" style="&entity1;" transform="translate(0,50)" />
    <circle cx="6.5cm" cy="2cm" r="100" style="&entity2;" transform="translate(70,150)" />
    <circle cx="6.5cm" cy="2cm" r="100" style="fill:green;" transform="translate(-70,150)"/>
  </g>
</svg>