Question: who are the top 5 leading scorers in nba history
[{'answer': 'Kareem Abdul - Jabbar'}, {'answer': 'Karl Malone'}, {'answer': 'Kobe Bryant'}, {'answer': 'Michael Jordan'}, {'answer': 'Wilt Chamberlain', 'provenance': [{'wikipedia_id': '8588996', 'title': 'List of National Basketball Association career scoring leaders', 'start_paragraph_id': 6, 'start_character': 87, 'end_paragraph_id': 6, 'end_character': 103, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}]