<|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 are only available upon request from the author and user for academic purpose. contact cuip@tsinghua.edu.cn to get the data. here we clarify the concerns on the tencent qq data. the tencent qq dataset used in this paper is not directly crawled from the website. instead, we collaborated with tencent company, they collected these data complying with their terms and conditions and they authorize us to use the data for academic research. --specifically please clarify if the users were asked for permission to use their chat history, and whether all identifiable information was removed prior to analysis of this dataset. before giving us the dataset, tencent company had fully anonymized all identifiable information according to their privacy policy. users must agree with the privacy policy before using the tencent qq services. --furthermore please clarify what restrictions on data availability exist as indicated in the submission form of this manuscript as we have signed agreement with tencent company and promise that the data is only used for academic research, we canít upload it in a public repository. however, we are willing to share the data if any researcher contact us and sign an agreement with us about the usage of data under the terms and conditions of tencent company.<|eot_id|><|start_header_id|>assistant<|end_header_id|>

yes<|eot_id|>