Question: when did presidents start running with vice presidents
[{'answer': '1804', 'provenance': [{'wikipedia_id': '216817', 'title': 'Running mate', 'start_paragraph_id': 7, 'start_character': 280, 'end_paragraph_id': 7, 'end_character': 284, 'bleu_score': 1.0, 'section': 'Section::::In United States politics.\n'}]}, {'provenance': [{'wikipedia_id': '216817', 'title': 'Running mate', 'start_paragraph_id': 7, 'start_character': 4, 'end_paragraph_id': 7, 'end_character': 760, 'bleu_score': 0.9238371988087871, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 12248266619362953643}, 'section': 'Section::::In United States politics.\n'}]}]