<|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 data that we used was provided by the human fertilisation and embryology authority (hfea). our agreement with them does not allow us to make the data available to other researchers. however, the hfea register can be freely downloaded from their website: http://www.hfea.gov.uk/5447.html and requests for data can be directed to enquiriesteam@hfea.gov.uk.<|eot_id|><|start_header_id|>assistant<|end_header_id|>

yes<|eot_id|>