Besides, {HEAD ~ a memory part} capable of storing {TAIL ~ files} of the contents, and a signal reproducing part reproducing the files of the contents and generating the signal may be included inside the apparatus body 
capable of storing
Besides , { HEAD ~ a memory part } capable of storing { TAIL ~ files } of the contents , and a signal reproducing part reproducing the files of the contents and generating the signal may be included inside the apparatus body
OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL REL REL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH