Thank you for your reply
this is the error :
ERROR SUMMARY:
line 6 of personalinformation.top:
FILE-1 Unknown top-level declaration u: in RAWDATA/PATIENT/personalinformation.top
I had created the concept after the line of the declaration of the topic in the file. When I put the concept before writing the subject line in the file: it worked.
Also, I saw ontology that there are a number of concepts in French already created. I tried to use one by invoking it in my file but the engine does not perform the matching