Question: when was the last episode of friends aired
[{'answer': 'May 6 , 2004', 'provenance': [{'wikipedia_id': '4295858', 'title': 'The Last One (Friends)', 'start_paragraph_id': 1, 'start_character': 442, 'end_paragraph_id': 1, 'end_character': 454, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '4295858', 'title': 'The Last One (Friends)', 'start_paragraph_id': 1, 'start_character': 35, 'end_paragraph_id': 1, 'end_character': 998, 'bleu_score': 0.954716230263783, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 18167954677058696015}, 'section': 'Section::::Abstract.'}]}]