<|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 confirm that, for approved reasons, some access restrictions apply to the data underlying the findings. the data have been obtained from thomson reuters' web of science database. our license agreement with thomson reuters does not allow us to make the data freely available. readers can contact thomson reuters to obtain the data (http://thomsonreuters.com/thomson-reuters-web-of-science/). the online term map visualizations are available at www.cwts.nl/projects/epsrc/.<|eot_id|><|start_header_id|>assistant<|end_header_id|>

yes<|eot_id|>