The probe element

The probe element specified a list question that will appear in the user's sidebar drop-down list of the NLI. This lets users fetch constants that will populate the sidebar area of their standard NLI browser.

<!ATTLIST probe
          text CDATA #REQUIRED
          answers CDATA #IMPLIED
          description CDATA #IMPLIED>

text is the literal text of the probe generating phrase.

answers can be empty or be a comma separates list of values that literally will appear in the user's sidebar. Here we see several example probe elements:

description allows you to attach arbitrary documentation over a probe.

    <probe text="names of lakes"/>
    <probe text="numbers of roads"/>
    <probe text="my cities" answer="Detroit,Ann Arbor,Columbus,Lansing,East Lansing,DC,New York,Los Angeles,Berkeley,Austin"/>