<|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: tree-ring width data are available from the noaa national centers for environmental information www.ncdc.noaa.gov/data-access/paleoclimatology-data/datasets/tree-ring. basal area increments are included in s4 table together with powdery mildew infection per tree.<|eot_id|><|start_header_id|>assistant<|end_header_id|>

yes<|eot_id|>