Entityhub - Query

[Sebastian Germesin]

Dear all,

I am currently implementing the query endpoint of the entityhub (addresses VIE 
issue #64 (https://github.com/bergie/VIE/issues/64))

http://dev.iks-project.eu:8080/entityhub/query

Using the folling query from the documentation:

             {
             "selected": [
                          "http://www.w3.org/2000/01/rdf-schema#label";,
                          "http://dbpedia.org/ontology/birthDate";,
                          "http://dbpedia.org/ontology/deathDate";],
                      "offset": "0",
                      "limit": "3",
                      "constraints": [{ 
                          "type": "range", 
                          "field": "http://dbpedia.org/ontology/birthDate";, 
                          "lowerBound": "1946-01-01T00:00:00.000Z",
                          "upperBound": "1946-12-31T23:59:59.999Z",
                          "inclusive": true,
                          "datatype": "xsd:dateTime"
                      },{ 
                          "type": "reference", 
                          "field": 
"http://www.w3.org/1999/02/22-rdf-syntax-ns#type";, 
                          "value": "http://dbpedia.org/ontology/Person";, 
                      }]
                  }

The expected results should include entities: Bill Clinton, George W. Bush and 
Donald Trump. However, no results are returned. Is something wrong with the 
query?

Thanks a lot in advance,

Sebastian