Question: how many movies are there in the chronicles of narnia series
[{'answer': '3', 'provenance': [{'wikipedia_id': '3919268', 'title': 'The Chronicles of Narnia (film series)', 'start_paragraph_id': 8, 'start_character': 16, 'end_paragraph_id': 8, 'end_character': 17, 'bleu_score': 1.0, 'section': 'Section::::Development.\n'}]}]