Question: who has won the race to liquefy helium
[{'answer': 'Heike Kamerlingh Onnes', 'provenance': [{'wikipedia_id': '55279', 'title': 'James Dewar', 'start_paragraph_id': 11, 'start_character': 562, 'end_paragraph_id': 11, 'end_character': 584, 'bleu_score': 1.0, 'section': 'Section::::Career.\n'}]}, {'provenance': [{'wikipedia_id': '55279', 'title': 'James Dewar', 'start_paragraph_id': 11, 'start_character': 0, 'end_paragraph_id': 11, 'end_character': 846, 'bleu_score': 0.985764216565234, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 4983948868923897358}, 'section': 'Section::::Career.\n'}]}]