query: SELECT DISTINCT ?constituencyLabel ?typeLabel ?start ?end ?partofLabel {
   ?item p:P39 ?positionStatement .
   ?positionStatement ps:P39 [ wdt:P279 wd:Q1711695 ] . 
   OPTIONAL { ?item wdt:P735 ?givenName . }
   OPTIONAL { ?positionStatement pq:P768 ?constituency . }
   OPTIONAL { ?constituency wdt:P31 ?type .}
   OPTIONAL { ?constituency wdt:P571 ?start .}
   OPTIONAL { ?constituency wdt:P576 ?end .}
   OPTIONAL { ?constituency wdt:P131 ?partof .}
   SERVICE wikibase:label { bd:serviceParam wikibase:language 'en' }
  }
  ORDER BY ?start
  
  