Question: when did friends season 8 episode 1 air
[{'answer': 'September 27 , 2001', 'provenance': [{'wikipedia_id': '27716091', 'title': 'Friends (season 8)', 'start_paragraph_id': 1, 'start_character': 114, 'end_paragraph_id': 1, 'end_character': 133, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}]