Question: when did women's soccer become an olympic sport
[{'answer': '1996', 'provenance': [{'wikipedia_id': '729870', 'title': 'Football at the Summer Olympics', 'start_paragraph_id': 1, 'start_character': 229, 'end_paragraph_id': 1, 'end_character': 233, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '729870', 'title': 'Football at the Summer Olympics', 'start_paragraph_id': 1, 'start_character': 51, 'end_paragraph_id': 1, 'end_character': 233, 'bleu_score': 0.823842006783552, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 16865299926931064120}, 'section': 'Section::::Abstract.'}]}]