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