{TAIL ~ A ring} is rotatably mounted to {HEAD ~ the cylindrical top} and has three notches defined in an inner periphery thereof 
{ TAIL ~ A ring } is rotatably mounted to { HEAD ~ the cylindrical top } and has three notches defined in an inner periphery thereof
TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH