query: #title: unit violations when used as qualifier: list
  # Complex constraint from [[Property talk:P3744]]
  # detailed list
  SELECT ?unit ?unitLabel ?item ?itemLabel ?statement ?prop ?propLabel
  {
    {  SELECT *
       { 
          ?statement pqv:P3744/wikibase:quantityUnit ?unit .
          FILTER( ?unit != wd:Q199 )
        }
    }
    hint:Query hint:optimizer "None".
    ?item ?p ?statement .
    ?prop wikibase:claim ?p .
    SERVICE wikibase:label { bd:serviceParam wikibase:language "[AUTO_LANGUAGE],en". }
  }  
  LIMIT 500