Question: what size engine does a subaru brz have
[{'answer': '2.0 - litre'}, {'provenance': [{'wikipedia_id': '33924745', 'title': 'Toyota 86', 'start_paragraph_id': 139, 'start_character': 0, 'end_paragraph_id': 139, 'end_character': 735, 'bleu_score': 0.86663002379241, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 14793047487038648883}, 'section': 'Section::::Post-launch concept cars.\n'}]}]