Question: when did the us declared neutrality in ww2
[{'answer': '1939', 'provenance': [{'wikipedia_id': '55813', 'title': 'Neutrality Acts of the 1930s', 'start_paragraph_id': 9, 'start_character': 208, 'end_paragraph_id': 9, 'end_character': 212, 'bleu_score': 1.0, 'section': 'Section::::Neutrality Act of 1935.\n'}]}, {'provenance': [{'wikipedia_id': '55813', 'title': 'Neutrality Acts of the 1930s', 'start_paragraph_id': 21, 'start_character': 0, 'end_paragraph_id': 21, 'end_character': 659, 'bleu_score': 0.9817332376369081, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 13983352701623478551}, 'section': 'Section::::Neutrality Act of 1939.\n'}]}]