Question: what is the white elephant in hills like white elephants
[{'answer': 'a child', 'provenance': [{'wikipedia_id': '994072', 'title': 'Hills Like White Elephants', 'start_paragraph_id': 18, 'start_character': 718, 'end_paragraph_id': 18, 'end_character': 725, 'bleu_score': 1.0, 'section': 'Section::::Dialogue.\n'}]}, {'provenance': [{'wikipedia_id': '994072', 'title': 'Hills Like White Elephants', 'start_paragraph_id': 18, 'start_character': 4, 'end_paragraph_id': 18, 'end_character': 1235, 'bleu_score': 0.8930821536362611, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 1016716141087235427}, 'section': 'Section::::Dialogue.\n'}]}]