Question: when did stranger things season one take place
[{'answer': 'the 1980s', 'provenance': [{'wikipedia_id': '46301800', 'title': 'Stranger Things', 'start_paragraph_id': 3, 'start_character': 168, 'end_paragraph_id': 3, 'end_character': 177, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '46301800', 'title': 'Stranger Things', 'start_paragraph_id': 2, 'start_character': 0, 'end_paragraph_id': 2, 'end_character': 519, 'bleu_score': 0.710573358532943, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 750155032088893661}, 'section': 'Section::::Abstract.'}]}]