query: #Public libraries that are above or below sealevel, incicated and layered by color
  #defaultView:Map
  SELECT DISTINCT ?dpl ?dplLabel ?dplElev ?dplLoc ?rgb ?layer WHERE {
    #Is Dutch public library dpl
    ?dpl wdt:P31 wd:Q28564. #public library
    ?dpl wdt:P31 wd:Q11396180. #library branch 
    ?dpl wdt:P17 wd:Q55. #in the Netherlands
    ?dpl wdt:P625 ?dplLoc. #Location of the dpl
    ?dpl wdt:P2044 ?dplElev. #Elevation of the dpl
  
    BIND( 
      IF(?dplElev < 0, "FF0000",   
      IF(?dplElev > 0, "008000", 
      "000000"))  AS ?rgb). 
    
      BIND( 
      IF(?dplElev < 0, "Below sealevel", 
      IF(?dplElev > 0, "Above sealevel",   
      "At sealevel or Unknown")) AS ?layer). 
    
    SERVICE wikibase:label {bd:serviceParam wikibase:language "en" .}
  } 
  ORDER BY ?dplElev