Question: where does atp synthase get the energy to make atp
[{'answer': 'electron transport chain', 'provenance': [{'wikipedia_id': '178220', 'title': 'ATP synthase', 'start_paragraph_id': 16, 'start_character': 336, 'end_paragraph_id': 16, 'end_character': 360, 'bleu_score': 1.0, 'section': 'Section::::Binding model.\n'}]}, {'provenance': [{'wikipedia_id': '178220', 'title': 'ATP synthase', 'start_paragraph_id': 20, 'start_character': 0, 'end_paragraph_id': 20, 'end_character': 314, 'bleu_score': 0.5258966381369461, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 8502639025069345686}, 'section': 'Section::::Physiological role.\n'}]}]