Question: who had the longest career in nba history
[{'answer': 'Robert Parish', 'provenance': [{'wikipedia_id': '48715960', 'title': 'List of National Basketball Association seasons played leaders', 'start_paragraph_id': 1, 'start_character': 354, 'end_paragraph_id': 1, 'end_character': 367, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'answer': 'Kevin Willis', 'provenance': [{'wikipedia_id': '48715960', 'title': 'List of National Basketball Association seasons played leaders', 'start_paragraph_id': 1, 'start_character': 433, 'end_paragraph_id': 1, 'end_character': 445, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'answer': 'Kevin Garnett', 'provenance': [{'wikipedia_id': '48715960', 'title': 'List of National Basketball Association seasons played leaders', 'start_paragraph_id': 1, 'start_character': 507, 'end_paragraph_id': 1, 'end_character': 520, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}]