The arm 14 is elongated, having {TAIL ~ a first end} 44 and a second end 46 and {HEAD ~ a middle section} 48 therebetween 
The arm 14 is elongated , having { TAIL ~ a first end } 44 and a second end 46 and { HEAD ~ a middle section } 48 therebetween
OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH