Question: what percentage of blood is composed of plasma
[{'answer': '55 %', 'provenance': [{'wikipedia_id': '212240', 'title': 'Blood plasma', 'start_paragraph_id': 1, 'start_character': 217, 'end_paragraph_id': 1, 'end_character': 223, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '212240', 'title': 'Blood plasma', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 815, 'bleu_score': 0.7251381383101461, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 5392787522896315676}, 'section': 'Section::::Abstract.'}]}]