query: SELECT ?Property_ ?Property_Label ?Property_Description ?unit_ ?unit_Label ?constraint_status_ ?constraint_status_Label
  WHERE {
    
  	?Property_ p:P2302 ?Unit_statement .
  	?Unit_statement ps:P2302 wd:Q21514353 .
  	OPTIONAL {?Unit_statement pq:P2305 ?unit_ .}
  	OPTIONAL {?Unit_statement pq:P2316 ?constraint_status_ .}
  
  	SERVICE wikibase:label { bd:serviceParam wikibase:language "[AUTO_LANGUAGE],en". }
  
  } 