{TAIL ~ The processor} determines the description from the sensed interface surface identity and determined the region from the determined description and at least one of the position of {HEAD ~ the sensed tag} and a position of the scanning patch relative to the interface surface 
{ TAIL ~ The processor } determines the description from the sensed interface surface identity and determined the region from the determined description and at least one of the position of { HEAD ~ the sensed tag } and a position of the scanning patch relative to the interface surface
TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH