<|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 are not publicly available due to an ethical restriction, and is available from the neurotechnology group of berlin institute of technology and the ethics committee of the charitã© university hospital (number ea4/110/09) and the contact person is thomas gazlig.<|eot_id|><|start_header_id|>assistant<|end_header_id|>

yes<|eot_id|>