Question: which prince song reached highest on the charts
[{'answer': 'When Doves Cry', 'provenance': [{'wikipedia_id': '33048364', 'title': 'Prince singles discography', 'start_paragraph_id': 2, 'start_character': 1503, 'end_paragraph_id': 2, 'end_character': 1517, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'answer': "Let 's Go Crazy", 'provenance': [{'wikipedia_id': '33048364', 'title': 'Prince singles discography', 'start_paragraph_id': 2, 'start_character': 1524, 'end_paragraph_id': 2, 'end_character': 1539, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'answer': 'Kiss', 'provenance': [{'wikipedia_id': '33048364', 'title': 'Prince singles discography', 'start_paragraph_id': 3, 'start_character': 215, 'end_paragraph_id': 3, 'end_character': 219, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'answer': 'Batdance', 'provenance': [{'wikipedia_id': '33048364', 'title': 'Prince singles discography', 'start_paragraph_id': 3, 'start_character': 855, 'end_paragraph_id': 3, 'end_character': 863, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'answer': 'Cream', 'provenance': [{'wikipedia_id': '33048364', 'title': 'Prince singles discography', 'start_paragraph_id': 4, 'start_character': 279, 'end_paragraph_id': 4, 'end_character': 284, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}]