Question: where did they film the coliseum in the gladiator movie
[{'answer': 'Malta', 'provenance': [{'wikipedia_id': '3616797', 'title': 'Gladiator (2000 film)', 'start_paragraph_id': 2, 'start_character': 389, 'end_paragraph_id': 2, 'end_character': 394, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '3616797', 'title': 'Gladiator (2000 film)', 'start_paragraph_id': 47, 'start_character': 0, 'end_paragraph_id': 47, 'end_character': 817, 'bleu_score': 0.9844346099707091, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 5826284235373466437}, 'section': 'Section::::Production.:Filming.\n'}]}]