I think I have to make standardize all previous and future entries to be as follows:
Dave PARIS1-11,PARIS2-102,30,CANNE2-40,C22
AMR Toulouse-1,3,44,CANNE-6,D44,PARIS1-13
That is to separate between the prefix and the IDs with '-' whatever the prefix was. This means that PARIS1, PARIS2, CANNE2, TOULOUSE, CANNE are all prefixes and what comes after the '-' is the first ID inside the region.
The record should read:
Dave PARIS1-11
Dave PARIS2-102
Dave PARIS2-30
Dave CANNE2-40
Dave CANNE2-C22
Amr Toulouse-1
Amr Toulouse-3
Amr Toulouse-44
Amr Canne-6
Amr Canne-D44
Amr PARIS1-13
Thanks for your patience with me.