In {TAIL ~ addition}, {HEAD ~ suitable antioxidants} include heterocyclic compounds containing sulfur, nitrogen, and oxygen 
In
In { TAIL ~ addition } , { HEAD ~ suitable antioxidants } include heterocyclic compounds containing sulfur , nitrogen , and oxygen
REL TAIL TAIL TAIL TAIL TAIL OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH