In {HEAD ~ some embodiments}, the search query is entered as free text, thus reducing the amount of text to be entered by {TAIL ~ the user} 
In { HEAD ~ some embodiments } , the search query is entered as free text , thus reducing the amount of text to be entered by { TAIL ~ the user }
OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL