<|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: all relevant data are within the paper and its supporting information files. more information and additional data can be obtained upon request by dr. irmgard jordan, justus liebig university giessen, institute of nutritional sciences, international nutrition, wilhelmstr. 20, 35392 giessen, germany.<|eot_id|><|start_header_id|>assistant<|end_header_id|>

yes<|eot_id|>