{HEAD ~ The system} may include {TAIL ~ a search engine} to provide search results based on a search query, where the search results indicate objects related to each search result 
include
{ HEAD ~ The system } may include { TAIL ~ a search engine } to provide search results based on a search query , where the search results indicate objects related to each search result
HEAD HEAD HEAD HEAD HEAD HEAD OTH REL TAIL 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