Question: when was the first gas powered airplane invented
[{'answer': '1903', 'provenance': [{'wikipedia_id': '1045608', 'title': 'Wright Flyer', 'start_paragraph_id': 1, 'start_character': 67, 'end_paragraph_id': 1, 'end_character': 71, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '1045608', 'title': 'Wright Flyer', 'start_paragraph_id': 4, 'start_character': 0, 'end_paragraph_id': 4, 'end_character': 466, 'bleu_score': 0.893251296413702, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 18062974841665119215}, 'section': 'Section::::Design and construction.\n'}]}]