Question: when was the first carl's jr opened
[{'answer': '1956', 'provenance': [{'wikipedia_id': '30874552', 'title': "Carl's Jr.", 'start_paragraph_id': 2, 'start_character': 417, 'end_paragraph_id': 2, 'end_character': 421, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '30874552', 'title': "Carl's Jr.", 'start_paragraph_id': 2, 'start_character': 0, 'end_paragraph_id': 2, 'end_character': 575, 'bleu_score': 0.8530703876581671, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 4650266965270177635}, 'section': 'Section::::Abstract.'}]}]