query: embed.html##title: WMF projects in language
  SELECT ?item ?itemLabel ?itemDescription ?url
  {
      {
          ?item wdt:P31/wdt:P279 wd:Q33120876.
          ?item p:P407 ?st ; wdt:P856 ?url1.
          ?st ps:P407 wd:Q27811.
          OPTIONAL { ?st prov:wasDerivedFrom / pr:P4656 ?url0 }
          BIND(COALESCE(?url0, ?url1) as ?url)
      }
      UNION
      {
          wd:Q27811 wdt:P9748 ?url.
          BIND( wd:Q846672 as ?item )
      }
      SERVICE wikibase:label { bd:serviceParam wikibase:language "[AUTO_LANGUAGE],en". }
  }