<|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 available upon request due to legal restrictions. requests for confidential data are available from the norwegian university of life sciences and the swedish environmental protection agency may be sent to the corresponding author, dr. ole-gunnar stàen.<|eot_id|><|start_header_id|>assistant<|end_header_id|>

yes<|eot_id|>