Hi,
The term in the identifier is the URI of the concept in your knowledge base. INCEpTION stores concept features using the URIs. That for example allows that the label property in the knowledge base can simply be changed without having up update all the annotated documents.
However, it also means that if you want to resolve the identifier to the label from the knowledge base, you'd currently have to export both the annotated text and the KB and then process the exported annotated texts and replace the identifier with the label stored under that identifier in the knowledge base.
The alternative to using a concept feature that connects to a knowledge base (with these URIs) is to use a string feature with a tagset (like the value feature of the pre-defined Named Entity layer does).
Does that help?
-- Richard