Question: when did england win the eurovision song contest
[{'answer': '1967', 'provenance': [{'wikipedia_id': '17766232', 'title': 'United Kingdom in the Eurovision Song Contest', 'start_paragraph_id': 7, 'start_character': 376, 'end_paragraph_id': 7, 'end_character': 380, 'bleu_score': 1.0, 'section': 'Section::::History.:1950s to 1970s.\n'}]}, {'answer': '1969', 'provenance': [{'wikipedia_id': '17766232', 'title': 'United Kingdom in the Eurovision Song Contest', 'start_paragraph_id': 7, 'start_character': 1017, 'end_paragraph_id': 7, 'end_character': 1021, 'bleu_score': 1.0, 'section': 'Section::::History.:1950s to 1970s.\n'}]}, {'answer': '1976', 'provenance': [{'wikipedia_id': '17766232', 'title': 'United Kingdom in the Eurovision Song Contest', 'start_paragraph_id': 8, 'start_character': 178, 'end_paragraph_id': 8, 'end_character': 182, 'bleu_score': 1.0, 'section': 'Section::::History.:1950s to 1970s.\n'}]}, {'answer': '1981', 'provenance': [{'wikipedia_id': '17766232', 'title': 'United Kingdom in the Eurovision Song Contest', 'start_paragraph_id': 10, 'start_character': 32, 'end_paragraph_id': 10, 'end_character': 36, 'bleu_score': 1.0, 'section': 'Section::::History.:1980s and 1990s.\n'}]}, {'answer': '1997', 'provenance': [{'wikipedia_id': '17766232', 'title': 'United Kingdom in the Eurovision Song Contest', 'start_paragraph_id': 10, 'start_character': 1629, 'end_paragraph_id': 10, 'end_character': 1633, 'bleu_score': 1.0, 'section': 'Section::::History.:1980s and 1990s.\n'}]}]