Possible check if mapping is done correctly

[coreation]

At this moment a mapping is being executed, and a graph is returned containing the resulting triples. Wouldn't it be possible to count the amount of triples you MUST have in order to know that the mapping has been done ok.

e.g. you expect 1 rdf:type, check if it's there or not.

[coreation]

Implemented the logging of the result of the mapping of data, either no triples were created which triggers a notification, or if 1(+) triples were created a notification is given telling us the amount of triples that were created.