Question: when did the last world war i veteran die
[{'answer': '2012', 'provenance': [{'wikipedia_id': '34304509', 'title': 'List of last surviving veterans of military insurgencies and wars', 'start_paragraph_id': 231, 'start_character': 33, 'end_paragraph_id': 231, 'end_character': 37, 'bleu_score': 1.0, 'section': 'Section::::20th century.:World War I (1914–18).\n'}]}, {'provenance': [{'wikipedia_id': '34304509', 'title': 'List of last surviving veterans of military insurgencies and wars', 'start_paragraph_id': 231, 'start_character': 82, 'end_paragraph_id': 231, 'end_character': 198, 'bleu_score': 0.560252095299225, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 16861205434077494410}, 'section': 'Section::::20th century.:World War I (1914–18).\n'}]}]