Question: what kind of wood is used for pinewood derby cars
[{'answer': 'pine', 'provenance': [{'wikipedia_id': '1464816', 'title': 'Pinewood derby', 'start_paragraph_id': 1, 'start_character': 4, 'end_paragraph_id': 1, 'end_character': 8, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '1464816', 'title': 'Pinewood derby', 'start_paragraph_id': 12, 'start_character': 57, 'end_paragraph_id': 12, 'end_character': 418, 'bleu_score': 0.7810228904104131, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 6378563397506300177}, 'section': 'Section::::Construction.\n'}]}]