how to do this

Message USE hw5 ASX0002: Type mismatch: function scan-collection expects its 1st SELECT y-name, y.population, (SELECT array-count(u.#text.) FROM religion u) as religions number input parameter to be type orderedlist or unorderedlist, but th e actual input type is string CTypeMismatchException] FROM world x, x.mondial.country y LET religion = CASE WHEN y.religions is missing THEN [] WHEN is_array(y.religions) THEN y.religions ELSE [y.religions] END ORDER BY y.name