In particular, the notification can relate to {HEAD ~ the acceptance} of the delegation for {TAIL ~ an instant messaging communication} and session 
In particular , the notification can relate to { HEAD ~ the acceptance } of the delegation for { TAIL ~ an instant messaging communication } and session
OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH