Question: how many episodes of over the garden wall
[{'answer': '10', 'provenance': [{'wikipedia_id': '42145060', 'title': 'Over the Garden Wall', 'start_paragraph_id': 50, 'start_character': 151, 'end_paragraph_id': 50, 'end_character': 153, 'bleu_score': 1.0, 'section': 'Section::::Broadcast.\n'}]}]