Question: when was where the red fern grows filmed
[{'answer': 'on location in Oklahoma', 'provenance': [{'wikipedia_id': '32205540', 'title': 'Where the Red Fern Grows (1974 film)', 'start_paragraph_id': 15, 'start_character': 49, 'end_paragraph_id': 15, 'end_character': 72, 'bleu_score': 1.0, 'section': 'Section::::Production.\n'}]}, {'provenance': [{'wikipedia_id': '32205540', 'title': 'Where the Red Fern Grows (1974 film)', 'start_paragraph_id': 15, 'start_character': 0, 'end_paragraph_id': 15, 'end_character': 72, 'bleu_score': 0.850733133512352, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 6029346584743646862}, 'section': 'Section::::Production.\n'}]}]