{TAIL ~ The method} of the invention overcomes the problems of manufacturing yarns without requiring {HEAD ~ expensive and complicated mechanical elements} 
{ TAIL ~ The method } of the invention overcomes the problems of manufacturing yarns without requiring { HEAD ~ expensive and complicated mechanical elements }
TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD