Question: who has a higher rank sergeant or lieutenant
[{'answer': 'Lieutenant', 'provenance': [{'wikipedia_id': '3829337', 'title': 'Police rank', 'start_paragraph_id': 309, 'start_character': 33, 'end_paragraph_id': 309, 'end_character': 43, 'bleu_score': 1.0, 'section': 'Section::::Germany.:Elevated echelon.\n'}]}]