{TAIL ~ A clamping arrangement} keeps the foam sheet material in {HEAD ~ linear alignment} at the location where the sample is severed 
{ TAIL ~ A clamping arrangement } keeps the foam sheet material in { HEAD ~ linear alignment } at the location where the sample is severed
TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH