Feature summary (what you would like to be able to do and where):

When searching for sitelink suggestions for a Wikisource author page, limit the results to only humans by adding haswbstatement:P31=Q5 to the search query.

See Help:Extension:WikibaseCirrusSearch#haswbstatement for more details.

Use case(s) (list the steps that you performed to discover that problem, and describe the actual underlying problem which you want to solve. Do not describe only a solution):

Benefits (why should this be implemented?):