Question: where was the second series of unforgotten filmed
[{'answer': 'by the River Lea', 'provenance': [{'wikipedia_id': '48137666', 'title': 'Unforgotten', 'start_paragraph_id': 25, 'start_character': 164, 'end_paragraph_id': 25, 'end_character': 180, 'bleu_score': 1.0, 'section': 'Section::::Production.\n'}]}, {'answer': 'in the Cotswolds', 'provenance': [{'wikipedia_id': '48137666', 'title': 'Unforgotten', 'start_paragraph_id': 25, 'start_character': 182, 'end_paragraph_id': 25, 'end_character': 198, 'bleu_score': 1.0, 'section': 'Section::::Production.\n'}]}, {'answer': 'along the promenade in Brighton', 'provenance': [{'wikipedia_id': '48137666', 'title': 'Unforgotten', 'start_paragraph_id': 25, 'start_character': 204, 'end_paragraph_id': 25, 'end_character': 235, 'bleu_score': 1.0, 'section': 'Section::::Production.\n'}]}, {'provenance': [{'wikipedia_id': '48137666', 'title': 'Unforgotten', 'start_paragraph_id': 25, 'start_character': 0, 'end_paragraph_id': 25, 'end_character': 235, 'bleu_score': 0.950578622812921, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 2962448726949173587}, 'section': 'Section::::Production.\n'}]}]