{HEAD ~ Detoxified cobra venom} and its constituent neurotoxins have been reported to have {TAIL ~ potent antiviral activity} 
{ HEAD ~ Detoxified cobra venom } and its constituent neurotoxins have been reported to have { TAIL ~ potent antiviral activity }
HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH REL REL REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL