{TAIL ~ The rubber thread} 2, wherein {HEAD ~ said second rubber portion} comprises between 2% and 80% of said rubber thread by weight 
{ TAIL ~ The rubber thread } 2 , wherein { HEAD ~ said second rubber portion } comprises between 2 % and 80 % of said rubber thread by weight
TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH