Question: who plays donna tubbs on the cleveland show
[{'answer': 'voiced by Sanaa Lathan', 'provenance': [{'wikipedia_id': '24437392', 'title': 'List of The Cleveland Show characters', 'start_paragraph_id': 6, 'start_character': 25, 'end_paragraph_id': 6, 'end_character': 47, 'bleu_score': 1.0, 'section': 'Section::::Main characters.:Donna Tubbs-Brown.\n'}]}, {'provenance': [{'wikipedia_id': '24437392', 'title': 'List of The Cleveland Show characters', 'start_paragraph_id': 6, 'start_character': 18, 'end_paragraph_id': 6, 'end_character': 584, 'bleu_score': 0.9400779544670331, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 2443941380781164086}, 'section': 'Section::::Main characters.:Donna Tubbs-Brown.\n'}]}]