{TAIL ~ The high bending elasticity} results in {HEAD ~ a long average service life} and, in conjunction with a low stretch related slip and correspondingly small speed loss, in a high degree of efficiency 
{ TAIL ~ The high bending elasticity } results in { HEAD ~ a long average service life } and , in conjunction with a low stretch related slip and correspondingly small speed loss , in a high degree of efficiency
TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH