Question: when was the poem still i rise written
[{'answer': '1978', 'provenance': [{'wikipedia_id': '28018823', 'title': 'And Still I Rise', 'start_paragraph_id': 1, 'start_character': 95, 'end_paragraph_id': 1, 'end_character': 99, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}]