    Sentence ‘1:-The.: program :, <which dovinloads the  ‘pornographic material to ‘the usurpad-computer only.  briafly:t0-2iloiw visitors to’ view it's invisible’ to the  computer 's-owner.    Sertonc’ “2: The. program, which’ only brief  downloads :the pornographic, materi! to the usurped  ‘computer...is invisible to thé computer ’s-ownér.*:    