{TAIL ~ A portable electronic device} includes a main body , {HEAD ~ a cover} , and a battery  
{ TAIL ~ A portable electronic device } includes a main body , { HEAD ~ a cover } , and a battery
TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH