Question: who voices the tree in lord of the rings
[{'answer': 'John Rhys - Davies', 'provenance': [{'wikipedia_id': '63433', 'title': 'Treebeard', 'start_paragraph_id': 18, 'start_character': 153, 'end_paragraph_id': 18, 'end_character': 170, 'bleu_score': 1.0, 'section': 'Section::::Portrayal in adaptations.\n'}]}, {'provenance': [{'wikipedia_id': '63433', 'title': 'Treebeard', 'start_paragraph_id': 18, 'start_character': 0, 'end_paragraph_id': 18, 'end_character': 1519, 'bleu_score': 0.9213636991849251, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 16876774524991612315}, 'section': 'Section::::Portrayal in adaptations.\n'}]}]