The constants element
The constants element specified a constants directive that will appear in the user's sidebar drop-down list of the NLI Portal. This lets users fetch constants that will populate the sidebar are of their standard NLI browser.
<!ATTLIST constants text CDATA #REQUIRED answers CDATA #IMPLIED>
text is the literal text of the constants generating phrase.
answers can be empty or be a comma separates list of values that literally will appear in the users sidebar. Here we see several example constants elements:
<constants text="names of lakes"/> <constants text="numbers of roads"/> <constants text="my cities" answer="Detroit,Ann Arbor,Columbus,Lansing,East Lansing,DC,New York,Los Angeles,Berkely,Austin"/>