Question: statins is the name given to a group of which type of drugs
[{'answer': 'lipid - lowering medications', 'provenance': [{'wikipedia_id': '178197', 'title': 'Statin', 'start_paragraph_id': 1, 'start_character': 68, 'end_paragraph_id': 1, 'end_character': 99, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}]