Question: where in the plant cell does the calvin cycle take place
[{'answer': 'in the stroma of chloroplast', 'provenance': [{'wikipedia_id': '1104705', 'title': 'Calvin cycle', 'start_paragraph_id': 6, 'start_character': 158, 'end_paragraph_id': 6, 'end_character': 186, 'bleu_score': 1.0, 'section': 'Section::::Calvin cycle.\n'}]}, {'provenance': [{'wikipedia_id': '1104705', 'title': 'Calvin cycle', 'start_paragraph_id': 6, 'start_character': 0, 'end_paragraph_id': 6, 'end_character': 214, 'bleu_score': 0.9402297675816911, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 18148715958698403596}, 'section': 'Section::::Calvin cycle.\n'}]}]