query: #title: Statements with an end date shouldn't have best rank
  # Complex constraint from [[Property talk:P297]]
  #
  SELECT DISTINCT ?item ?value
  {
  	?item p:P297 ?st.
  	?st ps:P297 ?value.
  	?st pq:P582 [].
  	?item wdt:P297 ?value.
  }