Question: when does stranger things season 1 take place
[{'answer': 'early 1980s', 'provenance': [{'wikipedia_id': '46301800', 'title': 'Stranger Things', 'start_paragraph_id': 6, 'start_character': 85, 'end_paragraph_id': 6, 'end_character': 96, 'bleu_score': 1.0, 'section': 'Section::::Premise.\n'}]}, {'provenance': [{'wikipedia_id': '46301800', 'title': 'Stranger Things', 'start_paragraph_id': 6, 'start_character': 0, 'end_paragraph_id': 6, 'end_character': 412, 'bleu_score': 0.776387179568032, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 17221508111993344262}, 'section': 'Section::::Premise.\n'}]}]