<|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 are owned by eurocontrol (http://www.eurocontrol.int), the european public institution that coordinates and plans air traffic control for all of europe. data can be accessed by asking permission to the legitimate owner (eurocontrol). the owners reserve the right to grant/deny access to data.<|eot_id|><|start_header_id|>assistant<|end_header_id|>

yes<|eot_id|>