Question: where do electrons flow in a galvanic cell
[{'answer': 'through the external conductor', 'provenance': [{'wikipedia_id': '254510', 'title': 'Galvanic cell', 'start_paragraph_id': 14, 'start_character': 28, 'end_paragraph_id': 14, 'end_character': 58, 'bleu_score': 1.0, 'section': 'Section::::Basic description.\n'}]}, {'provenance': [{'wikipedia_id': '254510', 'title': 'Galvanic cell', 'start_paragraph_id': 14, 'start_character': 0, 'end_paragraph_id': 14, 'end_character': 113, 'bleu_score': 0.8852140475440831, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 151046195854058620}, 'section': 'Section::::Basic description.\n'}]}]