Question: when does fear the walking dead season 4 come out
[{'answer': 'April 15 , 2018', 'provenance': [{'wikipedia_id': '55922148', 'title': 'Fear the Walking Dead (season 4)', 'start_paragraph_id': 1, 'start_character': 110, 'end_paragraph_id': 1, 'end_character': 125, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '55922148', 'title': 'Fear the Walking Dead (season 4)', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 551, 'bleu_score': 0.7525806373879711, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 12504516766352529698}, 'section': 'Section::::Abstract.'}]}]