To account for the processing time required to identify the presence of the television commercial, the television commercial can be stored in {HEAD ~ a memory} for {TAIL ~ subsequent access} 
To account for the processing time required to identify the presence of the television commercial , the television commercial can be stored in { HEAD ~ a memory } for { TAIL ~ subsequent access }
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH 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 TAIL