<job_desc> <task> <application>worker</application> <stdin_filename>stdin</stdin_filename> <stdout_filename>stdout</stdout_filename> <command_line>10</command_line> </task> <task> <application>worker2</application> <stdin_filename>stdin2</stdin_filename> <stdout_filename>stdout2</stdout_filename> <command_line>10</command_line> </task> </job_desc>