If {HEAD ~ the text} in {TAIL ~ the Search Box} 101 including the newly entered character is a full word, the state of the search session is moved to the Unambiguous state 502 
in
If { HEAD ~ the text } in { TAIL ~ the Search Box } 101 including the newly entered character is a full word , the state of the search session is moved to the Unambiguous state 502
OTH HEAD HEAD HEAD HEAD HEAD HEAD 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 OTH OTH OTH