query: #title: Easternmost should be east of westernmost
  # Complex constraint from [[Property talk:P1334]]
  # correct where needed. FIXME: allow for exceptions if not same "applies to part" qualifier; handle Q159
  SELECT DISTINCT ?item ?itemLabel ?summary
  WHERE
  {
    ?item p:P1334 ?st .
    ?st psv:P1334 [ wikibase:geoLatitude ?lat ; wikibase:geoLongitude ?lon ] .
    ?item p:P1335 ?st2 .
    ?st2 psv:P1335 [ wikibase:geoLatitude ?lat2 ; wikibase:geoLongitude ?lon2 ] .
    FILTER ( ?lon < ?lon2 )
    BIND ( CONCAT(str(?lon), " < ", str(?lon2) )  as ?summary)
    FILTER ( ?item not in ( wd:Q159  )  )
    SERVICE wikibase:label { bd:serviceParam wikibase:language "en". }
  }
  LIMIT 50