<|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: data have been collected through the public sina weibo api (http://open.weibo.com/wiki/sdk/en) and are stored at a repository of wuhan university. access to the data is restricted due to possible ethical/privacy considerations. sina weibo has published the policy (http://open.weibo.com/wiki/<u+5e73><u+53f0><u+516c><u+7ea6>), which stated that data from sina weibo cannot be published to third-party without authorization. thus the data used for this analysis cannot be included in the manuscript, supplemental files, or a public repository. those who are interested in the data can contact with dr. wang (ydwang@whu.edu.cn), and apply permission from sina. in addition, the method how to collect the underlying data for this study using the sina weibo api has been introduced detailedly in the second paragraph of the section data collection.<|eot_id|><|start_header_id|>assistant<|end_header_id|>

yes<|eot_id|>