Question: what is the operation in hills like white elephants
[{'answer': 'an abortion', 'provenance': [{'wikipedia_id': '994072', 'title': 'Hills Like White Elephants', 'start_paragraph_id': 3, 'start_character': 324, 'end_paragraph_id': 3, 'end_character': 335, 'bleu_score': 1.0, 'section': 'Section::::Synopsis.\n'}]}, {'provenance': [{'wikipedia_id': '994072', 'title': 'Hills Like White Elephants', 'start_paragraph_id': 3, 'start_character': 0, 'end_paragraph_id': 3, 'end_character': 335, 'bleu_score': 0.7636820633399081, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 10846162203403469503}, 'section': 'Section::::Synopsis.\n'}]}]