deriving said set of features from closed captioning data representing at least one of {HEAD ~ said dialog} and said narration associated with {TAIL ~ said television commercial} 
deriving said set of features from closed captioning data representing at least one of { HEAD ~ said dialog } and said narration associated with { TAIL ~ said television commercial }
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH REL REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL