Question: fe is the chemical symbol for what element
[{'answer': 'Iron', 'provenance': [{'wikipedia_id': '14734', 'title': 'Iron', 'start_paragraph_id': 0, 'start_character': 0, 'end_paragraph_id': 0, 'end_character': 4, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}]