sentence: Two men describe lead climbing while one man in a bright green shirt climbs a climbing wall the other man wearing a dark green shirt holds the lead line and explains the process. sentence:  The man in the dark green shirt places a strap and link to the climbing wall and loops a rope through the clip. sentence:  The man reverses the strap position and loops the rope through the strap eye link. sentence:  The man in the bright green shirt continue climbing to the top of the wall. sentence:  The man in the dark green shirt continues talking to the camera.