Question: who led the war for the union in the west brainly
[{'answer': 'Ulysses S. Grant', 'provenance': [{'wikipedia_id': '30098820', 'title': 'Ulysses S. Grant and the American Civil War', 'start_paragraph_id': 0, 'start_character': 0, 'end_paragraph_id': 0, 'end_character': 16, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '30098820', 'title': 'Ulysses S. Grant and the American Civil War', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 958, 'bleu_score': 0.9879148529393721, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 9443729606818891414}, 'section': 'Section::::Abstract.'}]}]