The map instance 134 may be used to perform {HEAD ~ the transformations} described in {TAIL ~ the map definition} 132 
described in
The map instance 134 may be used to perform { HEAD ~ the transformations } described in { TAIL ~ the map definition } 132
OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD REL REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH