Question: when will the 2019 cricket world cup fixtures be announced
[{'answer': '26 April 2018', 'provenance': [{'wikipedia_id': '4971952', 'title': '2019 Cricket World Cup', 'start_paragraph_id': 13, 'start_character': 52, 'end_paragraph_id': 13, 'end_character': 65, 'bleu_score': 1.0, 'section': 'Section::::Venues.\n'}]}, {'provenance': [{'wikipedia_id': '4971952', 'title': '2019 Cricket World Cup', 'start_paragraph_id': 13, 'start_character': 0, 'end_paragraph_id': 13, 'end_character': 474, 'bleu_score': 0.97451705556073, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 12778905926821593443}, 'section': 'Section::::Venues.\n'}]}]