<|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: most of the relevant data are within the paper and its supporting information files. some data can be retrieved from database at web of science or scopus. users may need permission to use these data from thomson reuters or elsevier.<|eot_id|><|start_header_id|>assistant<|end_header_id|>

yes<|eot_id|>