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