{TAIL ~ This invention} relates to {HEAD ~ a Group 8 metal containing catalyst compound} for the metathesis of olefins 
{ TAIL ~ This invention } relates to { HEAD ~ a Group 8 metal containing catalyst compound } for the metathesis of olefins
TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH