{TAIL ~ The scores} are then aggregated to rate the event type in {HEAD ~ addition} to scoring the individual event instances 
{ TAIL ~ The scores } are then aggregated to rate the event type in { HEAD ~ addition } to scoring the individual event instances
TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH