Which general is known for his scorched-earth policy in the US Civil War?
{'directed': True, 'multigraph': False, 'graph': {}, 'nodes': [{'type': 'QUESTIONS_ENTITY', 'name_': 'Q8676', 'id': 0, 'label': 'American Civil War'}, {'type': 'ANSWER_CANDIDATE_ENTITY', 'name_': 'Q7284073', 'id': 1, 'label': 'Railroad Redoubt'}], 'links': [{'name_': 'P361', 'source': 1, 'target': 0, 'label': 'part of'}]}