Question: who wrote the words to flower of scotland
[{'answer': 'Roy Williamson', 'provenance': [{'wikipedia_id': '31579', 'title': 'Flower of Scotland', 'start_paragraph_id': 2, 'start_character': 42, 'end_paragraph_id': 2, 'end_character': 56, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '31579', 'title': 'Flower of Scotland', 'start_paragraph_id': 2, 'start_character': 0, 'end_paragraph_id': 2, 'end_character': 446, 'bleu_score': 0.521609229912662, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 14382078739259378433}, 'section': 'Section::::Abstract.'}]}]