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