Question: what type of wood will sink in water
[{'answer': 'Lignum vitae', 'provenance': [{'wikipedia_id': '184583', 'title': 'Lignum vitae', 'start_paragraph_id': 0, 'start_character': 0, 'end_paragraph_id': 0, 'end_character': 12, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '184583', 'title': 'Lignum vitae', 'start_paragraph_id': 7, 'start_character': 0, 'end_paragraph_id': 7, 'end_character': 446, 'bleu_score': 0.7967987339396171, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 12913194402555188928}, 'section': 'Section::::Description.\n'}]}]