Question: what was the last season of jersey shore
[{'answer': '6', 'provenance': [{'wikipedia_id': '27689397', 'title': 'List of Jersey Shore episodes', 'start_paragraph_id': 1, 'start_character': 396, 'end_paragraph_id': 1, 'end_character': 397, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}]