Question: when did the use of plastic become popular
[{'answer': 'in the early 20th century', 'provenance': [{'wikipedia_id': '26145195', 'title': 'Plastic', 'start_paragraph_id': 8, 'start_character': 47, 'end_paragraph_id': 8, 'end_character': 72, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '26145195', 'title': 'Plastic', 'start_paragraph_id': 8, 'start_character': 0, 'end_paragraph_id': 8, 'end_character': 317, 'bleu_score': 0.9611463610973231, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 11362117322537524639}, 'section': 'Section::::Abstract.'}]}]