<?xml version="1.0" ?>
<sdf version="1.5">
  <world name="default">

    <include>
      <uri>test_model</uri>
    </include>

    <include>
      <uri>test_light</uri>
    </include>

    <include>
      <uri>test_actor</uri>
    </include>

  </world>
</sdf>
