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