Question: th part of medicare that is the hospital insurance portion is
[{'answer': 'Medicare Part A', 'provenance': [{'wikipedia_id': '58353', 'title': 'Medicare (United States)', 'start_paragraph_id': 4, 'start_character': 37, 'end_paragraph_id': 4, 'end_character': 52, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '58353', 'title': 'Medicare (United States)', 'start_paragraph_id': 4, 'start_character': 35, 'end_paragraph_id': 4, 'end_character': 898, 'bleu_score': 0.689289384797738, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 12575881329197786764}, 'section': 'Section::::Abstract.'}]}]