<|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, for approved reasons, some access restrictions apply to the data underlying the findings. data cannot be made publicly available because they are owned by a third party, the aids research network (ris), and because participants agreed that data would only be used for research projects by ris or those projects approved by its executive and scientific committee. interested readers may send requests for the data to phd. paz sobrino (psobrino@isciii.es). requests will be assessed by the executive and scientific committee.<|eot_id|><|start_header_id|>assistant<|end_header_id|>

yes<|eot_id|>