Question: does the east or west have more nba championships
[{'answer': 'Western Conference', 'provenance': [{'wikipedia_id': '1305847', 'title': 'Eastern Conference (NBA)', 'start_paragraph_id': 1, 'start_character': 140, 'end_paragraph_id': 1, 'end_character': 158, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}]