Question: when did they launch the international space station
[{'answer': '1998', 'provenance': [{'wikipedia_id': '15043', 'title': 'International Space Station', 'start_paragraph_id': 4, 'start_character': 40, 'end_paragraph_id': 4, 'end_character': 44, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '15043', 'title': 'International Space Station', 'start_paragraph_id': 4, 'start_character': 208, 'end_paragraph_id': 4, 'end_character': 921, 'bleu_score': 0.5142758868949461, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 4085898954251912698}, 'section': 'Section::::Abstract.'}]}]