{HEAD ~ The device} has {TAIL ~ a clamp arrangement} for holding a sample of foam sheet material 
has
{ HEAD ~ The device } has { TAIL ~ a clamp arrangement } for holding a sample of foam sheet material
HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH