Question: who is the actor that played marty in madagascar
[{'answer': 'Chris Rock', 'provenance': [{'wikipedia_id': '26157715', 'title': 'Danny Jacobs (actor)', 'start_paragraph_id': 70, 'start_character': 82, 'end_paragraph_id': 70, 'end_character': 92, 'bleu_score': 1.0, 'section': 'Section::::Discography.\n'}]}, {'provenance': [{'wikipedia_id': '26157715', 'title': 'Danny Jacobs (actor)', 'start_paragraph_id': 70, 'start_character': 0, 'end_paragraph_id': 70, 'end_character': 99, 'bleu_score': 0.579844280882994, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 8240633576872511582}, 'section': 'Section::::Discography.\n'}]}]