<?xml version="1.0"?> <model> <name>Cinder Block 2</name> <version>1.0</version> <sdf version="1.4">model-1_4.sdf</sdf> <sdf version="1.5">model.sdf</sdf> <author> <name>Nate Koenig</name> <email>natekoenig@gmail.com</email> </author> <description> A model of a cinder block. </description> </model>