Question: who is the lead singer of tony toni tone
[{'answer': 'Amar Khalil', 'provenance': [{'wikipedia_id': '843093', 'title': 'Tony! Toni! Toné!', 'start_paragraph_id': 1, 'start_character': 428, 'end_paragraph_id': 1, 'end_character': 439, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '843093', 'title': 'Tony! Toni! Toné!', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 473, 'bleu_score': 0.8602779315947451, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 7954507127222402238}, 'section': 'Section::::Abstract.'}]}]