<|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: due to ethical restrictions imposed by the irb committee, data are only available to the members of tokyo ccu network. therefore, the tokyo ccu network cannot provide individual raw data to third parties.<|eot_id|><|start_header_id|>assistant<|end_header_id|>

yes<|eot_id|>