<unk> <unk> <unk> <unk> <unk> Sentence 2: Until the advent of electronic and digital video technology, the mass production of pornographic films was tied directly to the mainstream film industry.<unk> Until the advent of electronic and digital video technology, the mass production of pornographic films was tied directly to the mainstream film industry.<unk> Question: Do sentence 1 and sentence 2 express the same meaning? - Yes or No? - Yes or No?
<unk> <unk>