Question: when was the first thing sent into space
[{'answer': '4 October 1957', 'provenance': [{'wikipedia_id': '28431', 'title': 'Space exploration', 'start_paragraph_id': 3, 'start_character': 313, 'end_paragraph_id': 3, 'end_character': 327, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '28431', 'title': 'Space exploration', 'start_paragraph_id': 3, 'start_character': 0, 'end_paragraph_id': 3, 'end_character': 828, 'bleu_score': 0.986253478180058, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 357842287010257789}, 'section': 'Section::::Abstract.'}]}]