Question: disagreements involving slavery and states' rights were two of the main causes of
[{'answer': 'the American Civil War', 'provenance': [{'wikipedia_id': '13993424', 'title': 'Issues of the American Civil War', 'start_paragraph_id': 0, 'start_character': 10, 'end_paragraph_id': 0, 'end_character': 32, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '13993424', 'title': 'Issues of the American Civil War', 'start_paragraph_id': 0, 'start_character': 0, 'end_paragraph_id': 0, 'end_character': 0, 'bleu_score': 1.0, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 6009708427900343317}, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '13993424', 'title': 'Issues of the American Civil War', 'start_paragraph_id': 2, 'start_character': 0, 'end_paragraph_id': 2, 'end_character': 524, 'bleu_score': 0.9768747032089851, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 6009708427900343317}, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '13993424', 'title': 'Issues of the American Civil War', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 205, 'bleu_score': 0.9466178497997021, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 6009708427900343317}, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '408840', 'title': 'Origins of the American Civil War', 'section': 'Section::::Abstract.', 'start_paragraph_id': 1, 'end_paragraph_id': 1, 'meta': {'evidence_span': ['Historians debating the origins of the American Civil War focus on the reasons why seven Southern states declared their secession from the United States (the Union), why they united to form the Confederate States of America (simply known as the "Confederacy"), and why the North refused to let them go. While most historians agree that conflicts over slavery caused the war, they disagree sharply regarding which kinds of conflictideological, economic, political, or socialwere most important.', 'Historians debating the origins of the American Civil War focus on the reasons why seven Southern states declared their secession from the United States (the Union), why they united to form the Confederate States of America (simply known as the "Confederacy"), and why the North refused to let them go.', 'Historians debating the origins of the American Civil War focus on the reasons why seven Southern states declared their secession from the United States (the Union), why they united to form the Confederate States of America (simply known as the "Confederacy"), and why the North refused to let them go. While most historians agree that conflicts over slavery caused the war, they disagree sharply regarding which kinds of conflictideological, economic, political, or socialwere most important.']}}]}]