A cap holder may further be provided for facilitating attachment of {HEAD ~ the cap} to {TAIL ~ the cylinder} 
to
A cap holder may further be provided for facilitating attachment of { HEAD ~ the cap } to { TAIL ~ the cylinder }
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL