<|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: All the data in the manuscript are from the official website. Since this study included data from 403 cities and regions in China, we only added data links for some of them.   http://wjw.beijing.gov.cn/   http://wsjkw.sh.gov.cn/index.html   http://www.gzcdc.org.cn/   http://www.szcdc.net/rdzt/xxgzbd/   https://m.tianqi.com/<|eot_id|><|start_header_id|>assistant<|end_header_id|>

yes<|eot_id|>