Question: what speed does the space shuttle re-enter earth
[{'answer': '100 km', 'provenance': [{'wikipedia_id': '45294', 'title': 'Atmospheric entry', 'start_paragraph_id': 5, 'start_character': 73, 'end_paragraph_id': 5, 'end_character': 79, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '45294', 'title': 'Atmospheric entry', 'start_paragraph_id': 5, 'start_character': 204, 'end_paragraph_id': 5, 'end_character': 1263, 'bleu_score': 0.625946483032167, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 10109312294896014954}, 'section': 'Section::::Abstract.'}]}]