<|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 used in this study are from the Birbhum Population Project of the Society for Health and Demographic Surveillance whose Project Director, Abhijit Chowdhury, is one of the authors of the paper and may be contacted at SURI.SHDS@gmail.com. Presently, the data are not publicly available as the dataset contains sensitive respondent information.<|eot_id|><|start_header_id|>assistant<|end_header_id|>

yes<|eot_id|>