Question: what was paper made of in ancient china
[{'answer': 'rags and other plant fibers', 'provenance': [{'wikipedia_id': '21182020', 'title': 'History of paper', 'start_paragraph_id': 11, 'start_character': 530, 'end_paragraph_id': 11, 'end_character': 557, 'bleu_score': 1.0, 'section': 'Section::::Paper in China.:Techniques.\n'}]}, {'provenance': [{'wikipedia_id': '21182020', 'title': 'History of paper', 'start_paragraph_id': 11, 'start_character': 0, 'end_paragraph_id': 11, 'end_character': 1064, 'bleu_score': 0.8877525580232111, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 2846326054570017058}, 'section': 'Section::::Paper in China.:Techniques.\n'}]}]