The upper section 202B is mounted on {HEAD ~ top} of the lower section and includes {TAIL ~ a domed outer wall} which projects generally perpendicularly to the longitudinal axis of the lower section 202A 
The upper section 202B is mounted on { HEAD ~ top } of the lower section and includes { TAIL ~ a domed outer wall } which projects generally perpendicularly to the longitudinal axis of the lower section 202A
OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH