Question: who wrote the song lift every voice and sing
[{'answer': 'James Weldon Johnson', 'provenance': [{'wikipedia_id': '341011', 'title': 'Lift Every Voice and Sing', 'start_paragraph_id': 1, 'start_character': 110, 'end_paragraph_id': 1, 'end_character': 130, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '341011', 'title': 'Lift Every Voice and Sing', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 224, 'bleu_score': 0.6519067844580111, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 15683630005060790042}, 'section': 'Section::::Abstract.'}]}]