<|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 from the english longitudinal study of ageing (elsa) and are available from the uk data service for researchers pending ethical approval for access to confidential data, under conditions of the end user license: http://ukdataservice.ac.uk/media/455131/<u+200b>cd137-enduserlicence.pdf.<|eot_id|><|start_header_id|>assistant<|end_header_id|>

yes<|eot_id|>