The predetermined parameters may be selected by a user, advantageously from {HEAD ~ a predefined list} of {TAIL ~ generic expressions} 
of
The predetermined parameters may be selected by a user , advantageously from { HEAD ~ a predefined list } of { TAIL ~ generic expressions }
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL