{HEAD ~ The components} of the blends have improved {TAIL ~ compatibility}, resulting in more homogeneous blends 
improved
{ HEAD ~ The components } of the blends have improved { TAIL ~ compatibility } , resulting in more homogeneous blends
HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH REL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH