SPARQL Query for description in Wikidata?

Question

What ist the correct way to query by parts of the description in wikidata?

This one works for the label and I get all popes starting with "Johannes":

SELECT ?a  ?rdfLab WHERE {
  ?a wdt:P39 wd:Q19546.
  ?a rdfs:label ?rdfLab.
 FILTER(LANG(?rdfLab) = "[AUTO_LANGUAGE]").
 FILTER(STRSTARTS(?rdfLab, "Johannes "))
} 

But how can I query for some content of the description.

I've tried rdfs:comment but this does not work.

Answer 1

schema:description是正确的方法