Question: where does the term elephant in the room come from
[{'answer': 'The New York Times', 'provenance': [{'wikipedia_id': '500408', 'title': 'Elephant in the room', 'start_paragraph_id': 5, 'start_character': 93, 'end_paragraph_id': 5, 'end_character': 111, 'bleu_score': 1.0, 'section': 'Section::::Origins.\n'}]}, {'provenance': [{'wikipedia_id': '500408', 'title': 'Elephant in the room', 'start_paragraph_id': 5, 'start_character': 0, 'end_paragraph_id': 5, 'end_character': 261, 'bleu_score': 0.9603762111511761, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 820520305893586587}, 'section': 'Section::::Origins.\n'}]}]