Question: when was the first episode of friends made
[{'answer': 'May 4 , 1994', 'provenance': [{'wikipedia_id': '712718', 'title': 'The Pilot (Friends)', 'start_paragraph_id': 2, 'start_character': 292, 'end_paragraph_id': 2, 'end_character': 306, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '712718', 'title': 'The Pilot (Friends)', 'start_paragraph_id': 2, 'start_character': 0, 'end_paragraph_id': 2, 'end_character': 1003, 'bleu_score': 0.9718863376361161, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 1059788501890141455}, 'section': 'Section::::Abstract.'}]}]