Question: when was star wars episode 4 re released
[{'answer': '1978', 'provenance': [{'wikipedia_id': '52549', 'title': 'Star Wars (film)', 'start_paragraph_id': 86, 'start_character': 624, 'end_paragraph_id': 86, 'end_character': 628, 'bleu_score': 1.0, 'section': 'Section::::Release.:Premiere and initial release.\n'}]}, {'answer': '1979', 'provenance': [{'wikipedia_id': '52549', 'title': 'Star Wars (film)', 'start_paragraph_id': 24, 'start_character': 557, 'end_paragraph_id': 24, 'end_character': 561, 'bleu_score': 1.0, 'section': 'Section::::Production.:Development.\n'}]}, {'answer': '1981', 'provenance': [{'wikipedia_id': '52549', 'title': 'Star Wars (film)', 'start_paragraph_id': 88, 'start_character': 56, 'end_paragraph_id': 88, 'end_character': 60, 'bleu_score': 1.0, 'section': 'Section::::Release.:Theatrical re-releases.\n'}]}, {'answer': '1982', 'provenance': [{'wikipedia_id': '52549', 'title': 'Star Wars (film)', 'start_paragraph_id': 2, 'start_character': 291, 'end_paragraph_id': 2, 'end_character': 295, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'answer': '1997', 'provenance': [{'wikipedia_id': '52549', 'title': 'Star Wars (film)', 'start_paragraph_id': 64, 'start_character': 811, 'end_paragraph_id': 64, 'end_character': 815, 'bleu_score': 1.0, 'section': 'Section::::Production.:Post-production.\n'}]}, {'provenance': [{'wikipedia_id': '52549', 'title': 'Star Wars (film)', 'start_paragraph_id': 95, 'start_character': 0, 'end_paragraph_id': 95, 'end_character': 482, 'bleu_score': 0.7616394865722551, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 10680017981236763233}, 'section': 'Section::::Release.:Theatrical re-releases.:Special Edition.\n'}]}]