Question: who has more nba championships west or east
[{'answer': 'The Eastern Conference / Division', 'provenance': [{'wikipedia_id': '16795291', 'title': 'List of NBA champions', 'start_paragraph_id': 3, 'start_character': 0, 'end_paragraph_id': 3, 'end_character': 37, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '16795291', 'title': 'List of NBA champions', 'start_paragraph_id': 3, 'start_character': 226, 'end_paragraph_id': 3, 'end_character': 514, 'bleu_score': 0.567099706469961, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 10727406345843725633}, 'section': 'Section::::Abstract.'}]}]