Question: what tax is used to provide medical services for persons over the age of 65
[{'answer': 'payroll tax', 'provenance': [{'wikipedia_id': '58353', 'title': 'Medicare (United States)', 'start_paragraph_id': 2, 'start_character': 282, 'end_paragraph_id': 2, 'end_character': 293, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'answer': 'premiums and surtaxes from beneficiaries', 'provenance': [{'wikipedia_id': '58353', 'title': 'Medicare (United States)', 'start_paragraph_id': 2, 'start_character': 307, 'end_paragraph_id': 2, 'end_character': 347, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}]