<|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 do not own the data underlying this study. the data is available at http://www.koweps.re.kr/data/data/list.do. the authors used wave 1 to wave 7.<|eot_id|><|start_header_id|>assistant<|end_header_id|>

yes<|eot_id|>