<|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: the authors confirm that all data underlying the findings are fully available without restriction. the material presented in the study is the result of acquisition and statistical analysis of hundreds of afm micrographs and their equivalent reconstructions. due to large file size, this data set is fully available upon request. requests may be sent to the corresponding author carlos bustamante.<|eot_id|><|start_header_id|>assistant<|end_header_id|>

yes<|eot_id|>