Question: how much does lebron average in the playoffs
[{'answer': '28.4', 'provenance': [{'wikipedia_id': '240940', 'title': 'LeBron James', 'start_paragraph_id': 26, 'start_character': 565, 'end_paragraph_id': 26, 'end_character': 569, 'bleu_score': 1.0, 'section': 'Section::::Professional career.:Cleveland Cavaliers.:2008–2010: MVP seasons.\n'}]}]