The x ESDS displace both the DES and UES once they have been used {HEAD ~ x number} of {TAIL ~ times}  
of
The x ESDS displace both the DES and UES once they have been used { HEAD ~ x number } of { TAIL ~ times }
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL OTH