query: embed.html##defaultView:ScatterChart
  SELECT (?count1 AS ?in_Tate) (?count2 AS ?in_Smithsonian) (CONCAT(?propertyLabel,": ",?thingLabel)AS ?attribute) WHERE {
  { SELECT (COUNT(?obj1) AS ?count1) ?property ?thing WHERE {
   ?obj1 wdt:P195 wd:Q430682. #Tate
   VALUES ?prop1 {wdt:P170}
   ?obj1 ?prop1 ?thing.
   ?property ?ref ?prop1 ; 
             rdf:type wikibase:Property .
    } GROUP BY ?property ?thing }
  { SELECT (COUNT(?obj2) AS ?count2) ?property ?thing WHERE {
   ?obj2 wdt:P195 wd:Q1192305. #Smithsonian
   VALUES ?prop1 {wdt:P170}
   ?obj2 ?prop1 ?thing.
   ?property ?ref ?prop1 ;
             rdf:type wikibase:Property .
    } GROUP BY ?property ?thing }
   FILTER (?count2 >0 )
   FILTER (?count1 >0 )
   FILTER (?thing != wd:Q4233718)
  SERVICE wikibase:label { bd:serviceParam wikibase:language "en". ?property rdfs:label ?propertyLabel .?thing rdfs:label ?thingLabel }
  }