Question: low blood pressure that occurs upon standing up is known
[{'answer': 'Orthostatic hypotension', 'provenance': [{'wikipedia_id': '101956', 'title': 'Orthostatic hypotension', 'start_paragraph_id': 0, 'start_character': 0, 'end_paragraph_id': 0, 'end_character': 23, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'answer': 'postural hypotension', 'provenance': [{'wikipedia_id': '101956', 'title': 'Orthostatic hypotension', 'start_paragraph_id': 1, 'start_character': 39, 'end_paragraph_id': 1, 'end_character': 59, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '101956', 'title': 'Orthostatic hypotension', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 877, 'bleu_score': 0.6552461200708221, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 14849585745497891707}, 'section': 'Section::::Abstract.'}]}]