{HEAD ~ The search engine} may apply {TAIL ~ an approximate string matching process} when comparing the verbal descriptors of the map objects to the query terms 
apply
{ HEAD ~ The search engine } may apply { TAIL ~ an approximate string matching process } when comparing the verbal descriptors of the map objects to the query terms
HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH