<|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 data are available upon request since there are ethical restrictions on the data as they contain identifying information. the contact person for requesting the data is dr. dong hyun sinn (dh.sinn@samsung.com).<|eot_id|><|start_header_id|>assistant<|end_header_id|>

yes<|eot_id|>