Question: how to say to the power of 4
[{'answer': 'fourth power', 'provenance': [{'wikipedia_id': '665027', 'title': 'Fourth power', 'start_paragraph_id': 1, 'start_character': 31, 'end_paragraph_id': 1, 'end_character': 43, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '665027', 'title': 'Fourth power', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 123, 'bleu_score': 0.910879922930628, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 5675835354020413008}, 'section': 'Section::::Abstract.'}]}]