Question: when does ripper street start on bbc 2
[{'answer': '22 August 2016', 'provenance': [{'wikipedia_id': '37814933', 'title': 'Ripper Street', 'start_paragraph_id': 3, 'start_character': 267, 'end_paragraph_id': 3, 'end_character': 281, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '37814933', 'title': 'Ripper Street', 'start_paragraph_id': 3, 'start_character': 0, 'end_paragraph_id': 3, 'end_character': 375, 'bleu_score': 0.972407137066537, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 3049459536600597953}, 'section': 'Section::::Abstract.'}]}]