<|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, relevant data is available upon request from the papua new guinea institute of medical research. requests for data access can be sent to dr. william pomat (william.pomat@pngimr.org.pg).<|eot_id|><|start_header_id|>assistant<|end_header_id|>

yes<|eot_id|>