Question: what season does mark sloan die in grey's anatomy
[{'answer': 'ninth', 'provenance': [{'wikipedia_id': '10213087', 'title': "Mark Sloan (Grey's Anatomy)", 'start_paragraph_id': 8, 'start_character': 7, 'end_paragraph_id': 8, 'end_character': 12, 'bleu_score': 1.0, 'section': 'Section::::Storylines.\n'}]}, {'provenance': [{'wikipedia_id': '10213087', 'title': "Mark Sloan (Grey's Anatomy)", 'start_paragraph_id': 8, 'start_character': 0, 'end_paragraph_id': 8, 'end_character': 1471, 'bleu_score': 0.9786114726831151, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 11827517557657842871}, 'section': 'Section::::Storylines.\n'}]}]