<mujoco model="soccer_ball">
    <include file="assets/soccer_dependencies.xml"/>
    <include file="../scene/basic_scene.xml"/>
    <worldbody>
      <body pos="0 .4 .05">
        <freejoint/>
        <include file="assets/soccer_ball.xml"/>
      </body>
    </worldbody>
</mujoco>
