Text.XML.HXT.XPath.XPathKeywords
a_ancestor
a_self
a_preceding_sibling
a_preceding
a_parent
a_namespace
a_following_sibling
a_following
a_descendant_or_self
a_descendant
a_child
a_attribute
a_ancestor_or_self
n_comment
n_node
n_processing_instruction
n_text