<|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. all the soil and environmental data used in this study comes from the national soil database of denmark and are not freely available. however, interested researchers could write to mogens h. greve (email: mogensh.greve@agrsci.dk) at the department of agro-ecology, aarhus university, denmark for data access arrangements.<|eot_id|><|start_header_id|>assistant<|end_header_id|>

yes<|eot_id|>