Question: who won the nobel prize for his research in blood groups
[{'answer': 'Karl Landsteiner', 'provenance': [{'wikipedia_id': '18945023', 'title': 'Karl Landsteiner', 'start_paragraph_id': 0, 'start_character': 0, 'end_paragraph_id': 0, 'end_character': 16, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '18945023', 'title': 'Karl Landsteiner', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 745, 'bleu_score': 0.964042150736462, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 15975170981055762058}, 'section': 'Section::::Abstract.'}]}]