{TAIL ~ The low pass filter} 708 has {HEAD ~ a cut} off frequency of 2 kHz 
{ TAIL ~ The low pass filter } 708 has { HEAD ~ a cut } off frequency of 2 kHz
TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH