Question: when did andrew carnegie wrote the gospel of wealth
[{'answer': 'in June of 1889', 'provenance': [{'wikipedia_id': '463198', 'title': 'The Gospel of Wealth', 'start_paragraph_id': 1, 'start_character': 98, 'end_paragraph_id': 1, 'end_character': 113, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}]