<|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: data cannot be made publicly available due to ethical restrictions. data are protected by the united nations relief works agency for palestine refugees (unrwa). data requests need to be made directly to unrwas lebanon field office, +961-1-840490, z.darkazally@unrwa.org<|eot_id|><|start_header_id|>assistant<|end_header_id|>

yes<|eot_id|>