Question: where did the name root beer come from
[{'answer': 'Pharmacist Charles Elmer Hires', 'provenance': [{'wikipedia_id': '54587', 'title': 'Root beer', 'start_paragraph_id': 4, 'start_character': 0, 'end_paragraph_id': 4, 'end_character': 30, 'bleu_score': 1.0, 'section': 'Section::::History.\n'}]}, {'provenance': [{'wikipedia_id': '54587', 'title': 'Root beer', 'start_paragraph_id': 4, 'start_character': 0, 'end_paragraph_id': 4, 'end_character': 710, 'bleu_score': 0.9598415906376221, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 17012433638014199031}, 'section': 'Section::::History.\n'}]}]