<|begin_of_text|><|start_header_id|>system<|end_header_id|>

You are an expert at identifying data availability statements in scientific text. A data availability statement describes where research data can be found or how it can be accessed.<|eot_id|><|start_header_id|>user<|end_header_id|>

Determine if the following text contains a data availability statement. Answer with 'yes' or 'no'.

Text: the authors confirm that all data underlying the findings are fully available without restriction. all data are from the book yellow river water conservancy commission, ministry of water conservancy and electric power, prc (19611971). observed data of rainfall, runoff and sediment in the zizhou experimental office over the period 19591969., which is available on application at http://loess.geodata.cn/portal/metadata/listmetadata.jsp?category=1160.<|eot_id|><|start_header_id|>assistant<|end_header_id|>

yes<|eot_id|>