Question: what percentage of the u.s. public debt is held by federal agencies and the federal reserve
[{'answer': 'a little less than half', 'provenance': [{'wikipedia_id': '322221', 'title': 'National debt of the United States', 'start_paragraph_id': 50, 'start_character': 31, 'end_paragraph_id': 50, 'end_character': 54, 'bleu_score': 1.0, 'section': 'Section::::Debt holdings.\n'}]}, {'provenance': [{'wikipedia_id': '322221', 'title': 'National debt of the United States', 'start_paragraph_id': 50, 'start_character': 0, 'end_paragraph_id': 50, 'end_character': 314, 'bleu_score': 0.965203995518735, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 8645966268112521735}, 'section': 'Section::::Debt holdings.\n'}]}]