<|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 an ethical restriction, the raw individual data cannot be made publicly available. however, we can provide data after statistical processing upon request. requests for data will be received by hirofumi nagayama.(hirofuminagayama@gmail.com)<|eot_id|><|start_header_id|>assistant<|end_header_id|>

yes<|eot_id|>