Question: how many season of the shannara chronicles are there
[{'answer': 'two seasons', 'provenance': [{'wikipedia_id': '47209073', 'title': 'The Shannara Chronicles', 'start_paragraph_id': 2, 'start_character': 454, 'end_paragraph_id': 2, 'end_character': 465, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '47209073', 'title': 'The Shannara Chronicles', 'start_paragraph_id': 2, 'start_character': 0, 'end_paragraph_id': 2, 'end_character': 530, 'bleu_score': 0.9484302650809421, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 9875885720343404877}, 'section': 'Section::::Abstract.'}]}]