|''with xml''| |''xpath''|//b|''in''|xyz|''is''|xyz| |''xpath''|//b|''in''|xyz|'''is'''|xyz| |''xpath''|//b|''in''|xyz|''is''|xyz| |''xpath''|count(//b)|''in''|xyz|''is''|1| |''xpath''|//b|''in''|xyz|''is not''|x| * The name space does not have to be specified if it's not used in the xml: |''xpath''|//g|''in''|xyzGG|'''is'''|GG| * The empty name space is removed from any tag before processing |''xpath''|//g|''in''|xyzGG|'''is'''|GG| |''xpath''|!-//request/attribute::LocationCode-!|''in''|in2009-08-09Z2009-08-11Z|''is''|OOL| * The name space has to be specified if it's used in the xpath: |''name space prefix''|g|uri|urn:www.foo.com| |''xpath''|//g:f|''in''|xyz|''is''|xyz| * But prefix doesn't have to be the same as long as the uri is correct: |''name space prefix''|gg|uri|urn:www.foo.com| |''xpath''|//gg:f|''in''|xyz|''is''|xyz|