As a REST endpoint, which should retrieve new statements given a Wikidata Item.

• POST /curate/QID
• required parameters:
  • QID, the subject Item ID;
  • PID, the property ID of the curated statement;
  • type, one of [ claim, qualifier, reference ];
  • state, either approved or rejected;
  • user, the user name of the curator
• optional parameter: dataset.

1. Depending on the type parameter, run the queries as per T169986#3500063;
2. default dataset value = all. Must adapt the queries as follows:
   • replace the named graph URI with ?g in the GRAPH clause;
   • add FILTER STRENDS(str(?g), "new") . as the last clause in the WHERE clause.