<|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 data is owned by a third party, the institute of urban environment, chinese academy of sciences and science and technology bureau of xiamen city. data will be available upon request to interested researchers. readers may contact dr cui shenghui, the director of urban environmental planning and management center in institute of urban environment, whose email address is shcui@iue.ac.cn, to request the data.<|eot_id|><|start_header_id|>assistant<|end_header_id|>

yes<|eot_id|>