Label Whitespace

Problem: A label has leading or trailing whitespace. This may cause issues when trying to reference the entity by label.

Solution: Remove the additional whitespace.

PREFIX owl: <http://www.w3.org/2002/07/owl#>
PREFIX rdfs: <http://www.w3.org/2000/01/rdf-schema#>

SELECT DISTINCT ?entity ?property ?value WHERE {
  {
   VALUES ?property {rdfs:label}
   ?entity ?property ?value .
   FILTER REGEX(str(?value), "[\\s\r\n]+$")
   FILTER (!isBlank(?entity))
  }
  UNION
  {
   VALUES ?property {rdfs:label}
   ?entity ?property ?value .
   FILTER REGEX(str(?value), "^[\\s\r\n]+")
   FILTER (!isBlank(?entity))
  }
}
ORDER BY ?entity