<|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 authors do not own the data underlying this study. The data is freely available upon request to interested researchers from the Ministry of Health CMAM and health facility databases. For requests for the data, please contact: Mr Sylvester Kathumba, Principal Nutritionist, Ministry of Health, Malawi. Email: kathumbasylvester@gmail.com. Phone: +265 999350822.<|eot_id|><|start_header_id|>assistant<|end_header_id|>

yes<|eot_id|>