The cartridge after {TAIL ~ insertion} into the first part of the housing is nearly completely or completely enclosed by the first part of {HEAD ~ the housing} 
The cartridge after { TAIL ~ insertion } into the first part of the housing is nearly completely or completely enclosed by the first part of { HEAD ~ the housing }
OTH OTH OTH TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD