The approach can further form an overall rating of the media by aggregating {HEAD ~ the ratings} of {TAIL ~ set} of event types within the media 
of
The approach can further form an overall rating of the media by aggregating { HEAD ~ the ratings } of { TAIL ~ set } of event types within the media
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH