The Expires header may report when {TAIL ~ a multimedia content} or a description file of {HEAD ~ a multimedia content} expires 
The Expires header may report when { TAIL ~ a multimedia content } or a description file of { HEAD ~ a multimedia content } expires
OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH