Question: how many units of alcohol in a 12 oz beer
[{'answer': '14 grams of alcohol', 'provenance': [{'wikipedia_id': '922129', 'title': 'Standard drink', 'start_paragraph_id': 3, 'start_character': 67, 'end_paragraph_id': 3, 'end_character': 86, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}]