<|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 these analyses are available upon request because they were obtained from a third party. brett archer (email: brettarcher@hotmail.com) supplied the south africa h1n1 data, jacco wallinga (email: jacco.wallinga@rivm.nl), supplied the sars data, and laura f. white (email: lfwhite@bu.edu) supplied the estimates of the si distribution used for the simulations.<|eot_id|><|start_header_id|>assistant<|end_header_id|>

yes<|eot_id|>