{TAIL ~ The slider} 47 has {HEAD ~ a fastening hole} 47 a in the central portion thereof 
{ TAIL ~ The slider } 47 has { HEAD ~ a fastening hole } 47 a in the central portion thereof
TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH