note to self #Scholia #chemistry

chemical-class.rq

# tool: scholia
#defaultView:Graph
PREFIX target: <http://www.wikidata.org/entity/Q211171>

SELECT ?class ?classLabel ?otherclass ?otherclassLabel ?rgb WITH {
  SELECT DISTINCT ?class ?otherclass ?rgb WHERE {
    { VALUES ?class_ { target: }
      { ?otherclass_ wdt:P279 ?class_ . BIND( "3182BD" AS ?rgb) BIND(?class_ AS ?class) BIND(?otherclass_ AS ?otherclass) }
      UNION
      { ?otherclass_ wdt:P31 ?class_ . BIND( "E6550D" AS ?rgb) BIND(?class_ AS ?class) BIND(?otherclass_ AS ?otherclass) }
      UNION
      { ?otherclass_ wdt:P279 ?otherclass2 . ?otherclass2 wdt:P279 ?class_ . BIND( "3182BD" AS ?rgb) BIND(?otherclass2 AS ?class) BIND(?otherclass_ AS ?otherclass) }
      UNION
      { ?otherclass_ wdt:P31 ?otherclass2 . ?otherclass2 wdt:P279 ?class_ . BIND( "E6550D" AS ?rgb) BIND(?otherclass2 AS ?class) BIND(?otherclass_ AS ?otherclass) }
    }
    UNION
    { VALUES ?otherclass_ { target: }
      ?otherclass_ wdt:P279 ?class_ . BIND(?class_ AS ?class) BIND(?otherclass_ AS ?otherclass)
    }
  } LIMIT 500
} AS %result
WHERE {
  INCLUDE %result
  SERVICE wikibase:label { bd:serviceParam wikibase:language "en". }
}