Question: when was the first intercity 125 train launched
[{'answer': '1976', 'provenance': [{'wikipedia_id': '620042', 'title': 'InterCity 125', 'start_paragraph_id': 10, 'start_character': 73, 'end_paragraph_id': 10, 'end_character': 77, 'bleu_score': 1.0, 'section': 'Section::::Production.:Prototype.\n'}]}]