query: embed.html#SELECT ?prop ?propLabel ?propDescription ?duration ?unitLabel
  WHERE 
  {
  	hint:Query hint:optimizer "None".
  	?prop p:P1552 [ ps:P1552 wd:Q102173107 ; pq:P2047 ?duration ; pqv:P2047 / wikibase:quantityUnit ?unit ] .
      SERVICE wikibase:label { bd:serviceParam wikibase:language "[AUTO_LANGUAGE],en". }
  }  
  LIMIT 500