Question: how many series of pirates of the caribbean
[{'answer': '5', 'provenance': [{'wikipedia_id': '8770750', 'title': 'Pirates of the Caribbean (film series)', 'start_paragraph_id': 2, 'start_character': 117, 'end_paragraph_id': 2, 'end_character': 118, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '8770750', 'title': 'Pirates of the Caribbean (film series)', 'start_paragraph_id': 2, 'start_character': 0, 'end_paragraph_id': 2, 'end_character': 1018, 'bleu_score': 0.9265723629338021, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 12476267384392158113}, 'section': 'Section::::Abstract.'}]}]