<|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 authors confirm that, for approved reasons, some access restrictions apply to the data underlying the findings. due to the volume of data used in this study (over 720gb), we have made all data available upon request. requests should be made to henggui zhang (henggui.zhang@manchester.ac.uk).<|eot_id|><|start_header_id|>assistant<|end_header_id|>

yes<|eot_id|>