Question: who changed the date of the day of the dead
[{'answer': 'Congress', 'provenance': [{'wikipedia_id': '56191', 'title': 'Memorial Day', 'start_paragraph_id': 9, 'start_character': 42, 'end_paragraph_id': 9, 'end_character': 50, 'bleu_score': 1.0, 'section': 'Section::::Precedents in the South.\n'}]}, {'provenance': [{'wikipedia_id': '56191', 'title': 'Memorial Day', 'start_paragraph_id': 42, 'start_character': 0, 'end_paragraph_id': 42, 'end_character': 678, 'bleu_score': 0.7680102046558771, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 7798623700522166321}, 'section': 'Section::::Decoration Day to Memorial Day.\n'}]}]