Question: where are intrauterine devices (iuds) placed in a woman's body
[{'answer': 'uterus', 'provenance': [{'wikipedia_id': '26521347', 'title': 'Intrauterine device', 'start_paragraph_id': 1, 'start_character': 181, 'end_paragraph_id': 1, 'end_character': 187, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '26521347', 'title': 'Intrauterine device', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 267, 'bleu_score': 0.9560167778278961, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 3120102493445585070}, 'section': 'Section::::Abstract.'}]}]