Question: when did the first panda come to america
[{'answer': '1936', 'provenance': [{'wikipedia_id': '5581466', 'title': 'Su Lin (1930s giant panda)', 'start_paragraph_id': 1, 'start_character': 64, 'end_paragraph_id': 1, 'end_character': 68, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '5581466', 'title': 'Su Lin (1930s giant panda)', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 284, 'bleu_score': 0.8868971877908971, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 7862751417855254256}, 'section': 'Section::::Abstract.'}]}]