<|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 CT images are obtained from the internet, including the two proposed papers and a regular medical website.   https://arxiv.org/abs/2003.13865   https://arxiv.org/abs/2003.11597   https://www.sirm.org/category/senza-categoria/covid-19/<|eot_id|><|start_header_id|>assistant<|end_header_id|>

yes<|eot_id|>