Question: who sang the duet with elton john don't go breaking my heart
[{'answer': 'Kiki Dee', 'provenance': [{'wikipedia_id': '7360078', 'title': "Don't Go Breaking My Heart", 'start_paragraph_id': 1, 'start_character': 62, 'end_paragraph_id': 1, 'end_character': 70, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '7360078', 'title': "Don't Go Breaking My Heart", 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 490, 'bleu_score': 0.9125472678170051, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 6636138026399995290}, 'section': 'Section::::Abstract.'}]}]