Question: where does corrosion occur in a galvanic cell
[{'answer': 'at the anode', 'provenance': [{'wikipedia_id': '44293086', 'title': 'Galvanic corrosion', 'start_paragraph_id': 3, 'start_character': 549, 'end_paragraph_id': 3, 'end_character': 561, 'bleu_score': 1.0, 'section': 'Section::::Overview.\n'}]}, {'provenance': [{'wikipedia_id': '44293086', 'title': 'Galvanic corrosion', 'start_paragraph_id': 3, 'start_character': 0, 'end_paragraph_id': 3, 'end_character': 919, 'bleu_score': 0.9870543337942441, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 18057349605527249016}, 'section': 'Section::::Overview.\n'}]}]