[{'role': 'USR', 'utterance': 'Do you remember what the ratings of movies stand for?'}
 {'role': 'SYS', 'utterance': 'Yes, G stands for General Audiences, PG means Parental Guidance suggested, R is restricted to audiences under 18 and X means explicit content.'}
 {'role': 'USR', 'utterance': 'Does anyone pay any attention to those ratings anymore?'}
 {'role': 'SYS', 'utterance': "Remember when we were kids? Theaters wouldn't let kids in to PG moves without a parent."}
 {'role': 'USR', 'utterance': 'I remember that I never saw an X moves even displayed.'}]
{'role': 'SYS', 'utterance': "Now with video rentals it's all a personal matter."}