<?xml version="1.0"?> <model> <name>Asphalt Plane</name> <version>1.0</version> <sdf version="1.4">model-1_4.sdf</sdf> <sdf version="1.5">model.sdf</sdf> <author> <name>Thomas Koletschka</name> <email>thomas.koletschka@gmail.com</email> </author> <description> An asphalt textured plane. </description> </model>