{HEAD ~ The entirety} of {TAIL ~ the body region} within the crystalline material can be within a single crystal of the material 
of
{ HEAD ~ The entirety } of { TAIL ~ the body region } within the crystalline material can be within a single crystal of the material
HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH