<?xml version="1.0"?>
<robot name="two_unnamed_boxes">
  <link name="base_link">
    <collision>
      <geometry>
        <box size=".1 .2 .3"/>
      </geometry>
    </collision>
    <collision>
      <geometry>
        <box size=".3 .2 .1"/>
      </geometry>
    </collision>
  </link>
</robot>
