Question: when did we start paying federal income tax
[{'answer': '1913', 'provenance': [{'wikipedia_id': '12255114', 'title': 'History of taxation in the United States', 'start_paragraph_id': 1, 'start_character': 663, 'end_paragraph_id': 1, 'end_character': 667, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '12255114', 'title': 'History of taxation in the United States', 'start_paragraph_id': 52, 'start_character': 0, 'end_paragraph_id': 52, 'end_character': 767, 'bleu_score': 0.863025814029143, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 16210989858881013709}, 'section': 'Section::::Income tax.:16th Amendment.\n'}]}]