Question: who were keogh plans designed to provide pension benefits for
[{'answer': 'the self - employed', 'provenance': [{'wikipedia_id': '1112756', 'title': 'Retirement plans in the United States', 'start_paragraph_id': 40, 'start_character': 47, 'end_paragraph_id': 40, 'end_character': 65, 'bleu_score': 1.0, 'section': 'Section::::Types of retirement plans.:Keogh or HR10 plans.\n'}]}, {'provenance': [{'wikipedia_id': '1112756', 'title': 'Retirement plans in the United States', 'start_paragraph_id': 40, 'start_character': 0, 'end_paragraph_id': 40, 'end_character': 164, 'bleu_score': 0.9271474438253491, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 15451242653875982094}, 'section': 'Section::::Types of retirement plans.:Keogh or HR10 plans.\n'}]}]