Question: when did the 10 pound pom scheme start
[{'answer': '1945', 'provenance': [{'wikipedia_id': '4408965', 'title': 'Ten Pound Poms', 'start_paragraph_id': 1, 'start_character': 272, 'end_paragraph_id': 1, 'end_character': 276, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '4408965', 'title': 'Ten Pound Poms', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 543, 'bleu_score': 0.978138775770484, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 10990614924987802362}, 'section': 'Section::::Abstract.'}]}]