Question: when was the last time the raptors won the playoffs
[{'answer': '2018', 'provenance': [{'wikipedia_id': '72879', 'title': 'Toronto Raptors', 'start_paragraph_id': 4, 'start_character': 369, 'end_paragraph_id': 4, 'end_character': 373, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}]