Question: who plays mr. thornton in north and south
[{'answer': 'Richard Crispin Armitage', 'provenance': [{'wikipedia_id': '2296661', 'title': 'Richard Armitage (actor)', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 24, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '2296661', 'title': 'Richard Armitage (actor)', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 837, 'bleu_score': 0.8664758814865761, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 4654477753065720332}, 'section': 'Section::::Abstract.'}]}]