<|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: we are prohibited from providing the data used for this study to others by our data use agreement with the centers for medicare and medicaid services (cms). the files used for this research can be purchased at www.resdac.org.<|eot_id|><|start_header_id|>assistant<|end_header_id|>

yes<|eot_id|>