The cartridge is {HEAD ~ a drum cartridge} that has {TAIL ~ an electrophotographic photosensitive drum} and is detachably mountable to the apparatus main body 
has
The cartridge is { HEAD ~ a drum cartridge } that has { TAIL ~ an electrophotographic photosensitive drum } and is detachably mountable to the apparatus main body
OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH