Question: when did the us enter the space race
[{'answer': '1955', 'provenance': [{'wikipedia_id': '84237', 'title': 'Space Race', 'start_paragraph_id': 2, 'start_character': 46, 'end_paragraph_id': 2, 'end_character': 50, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '84237', 'title': 'Space Race', 'start_paragraph_id': 2, 'start_character': 0, 'end_paragraph_id': 2, 'end_character': 670, 'bleu_score': 0.518786575998585, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 17750644215297063102}, 'section': 'Section::::Abstract.'}]}]