Question: when did the us start collecting federal income tax
[{'answer': 'after 1900', 'provenance': [{'wikipedia_id': '12255114', 'title': 'History of taxation in the United States', 'start_paragraph_id': 1, 'start_character': 472, 'end_paragraph_id': 1, 'end_character': 482, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '12255114', 'title': 'History of taxation in the United States', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 700, 'bleu_score': 0.9513660363882591, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 4956967255199410199}, 'section': 'Section::::Abstract.'}]}]