Question: who has the most expensive contract in the nba
[{'answer': 'Stephen Curry', 'provenance': [{'wikipedia_id': '33530134', 'title': 'Highest-paid NBA players by season', 'start_paragraph_id': 1, 'start_character': 988, 'end_paragraph_id': 1, 'end_character': 1001, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}]