<|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: URL1:http://www.nhc.gov.cn/xcs/xxgzbd/gzbd_index.shtml URL2:https://news.sina.cn/zt_d/yiqing0121   http://www.nhc.gov.cn/xcs/xxgzbd/gzbd_index.shtml   https://news.sina.cn/zt_d/yiqing0121<|eot_id|><|start_header_id|>assistant<|end_header_id|>

yes<|eot_id|>