Question: when is the new warriors book coming out
[{'answer': 'April 10 , 2018 .', 'provenance': [{'wikipedia_id': '1886892', 'title': 'Warriors (novel series)', 'start_paragraph_id': 31, 'start_character': 941, 'end_paragraph_id': 31, 'end_character': 956, 'bleu_score': 0.668740304976422, 'section': 'Section::::Series.:"Warriors: A Vision of Shadows".\n'}]}]