<|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 from studies included in the long-term karisoke research center database maintained and owned by the dian fossey gorilla fund international, atlanta ga usa. data the authors used may be accessed by permission of the dian fossey gorilla fund international, by contacting dr. damien caillaud (dcaillaud@gorillafund.org).<|eot_id|><|start_header_id|>assistant<|end_header_id|>

yes<|eot_id|>