Question: who led the nba in scoring last year
[{'answer': 'James Harden', 'provenance': [{'wikipedia_id': '9733533', 'title': 'List of National Basketball Association annual scoring leaders', 'start_paragraph_id': 2, 'start_character': 293, 'end_paragraph_id': 2, 'end_character': 305, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}]