<|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 available from the following doi's: study 1 - http://real.mtak.hu/10687/ (doi: 10.14755/mtakik.2014.0001), study 2 - http://real.mtak.hu/10688/ (doi: 10.14755/mtakik.2014.0002), and study 3 - http://real.mtak.hu/10689/ (doi: 10.14755/mtakik.2014.0003).<|eot_id|><|start_header_id|>assistant<|end_header_id|>

yes<|eot_id|>