<|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: all individual and consignment level data used in this study are within the paper and supporting information files. access to original documentation relating to anonymous shipments was granted on a confidential basis; hence, interested researchers wishing to access similar data would have to negotiate access with the south african department of environmental affairs, provincial nature conservation departments, and the south african cites scientific authority.<|eot_id|><|start_header_id|>assistant<|end_header_id|>

yes<|eot_id|>