<|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 all data underlying the findings are fully available without restriction. the data set is unsuitable for public deposition as this would breach ethical compliance. the data are available upon request and requests may be submitted to the corresponding author (dr. derek cheung).<|eot_id|><|start_header_id|>assistant<|end_header_id|>

yes<|eot_id|>