{TAIL ~ The use} of digital feedback loops allows {HEAD ~ information} recovered from the digital signals to be precise 
{ TAIL ~ The use } of digital feedback loops allows { HEAD ~ information } recovered from the digital signals to be precise
TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH