Question: photosystem that accepts electrons to make nadph from nadp+
[{'answer': 'PSI', 'provenance': [{'wikipedia_id': '23982752', 'title': 'Light-dependent reactions', 'start_paragraph_id': 1, 'start_character': 436, 'end_paragraph_id': 1, 'end_character': 439, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '23982752', 'title': 'Light-dependent reactions', 'start_paragraph_id': 18, 'start_character': 0, 'end_paragraph_id': 18, 'end_character': 612, 'bleu_score': 0.9041920146744571, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 2301708784111218792}, 'section': 'Section::::In chloroplasts.\n'}]}]