<|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 are available upon request due to standards and procedures set by the federal government. many government agencies require the completion of a data users agreement before the dataset is sent to them. this is the case with the national cancer institutes fab dataset; if parties are interested in obtaining the dataset, instructions for contacting dr. april oh are listed on the fab website: http://cancercontrol.cancer.gov/brp/fab/.<|eot_id|><|start_header_id|>assistant<|end_header_id|>

yes<|eot_id|>