<pt>The <pt> element specifies a parameter term within a parameter
list entry. This element
is part of the DITA programming domain, a special set of DITA elements
designed to document programming tasks, concepts, and reference information.
See appendix for information about this element in OASIS document type shells.
+ topic/dt pr-d/pt
See parml.
The following attributes
are available on this element: Universal attribute group,
outputclass, and @keyref.