<|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 questionnaire data are made freely available in the supplemental files. because of ethical restrictions the audio recordings (which are not anonymous) cannot be made publicly available. readers may contact hedy greijdanus (h.j.e.greijdanus@rug.nl) to request these files.<|eot_id|><|start_header_id|>assistant<|end_header_id|>

yes<|eot_id|>