Question: when did streetwear start as a fashion trend
[{'answer': 'the late 1970s', 'provenance': [{'wikipedia_id': '2461073', 'title': 'Streetwear', 'start_paragraph_id': 3, 'start_character': 89, 'end_paragraph_id': 3, 'end_character': 103, 'bleu_score': 1.0, 'section': 'Section::::History.\n'}]}, {'answer': 'early 1980s', 'provenance': [{'wikipedia_id': '2461073', 'title': 'Streetwear', 'start_paragraph_id': 3, 'start_character': 108, 'end_paragraph_id': 3, 'end_character': 119, 'bleu_score': 1.0, 'section': 'Section::::History.\n'}]}]