<|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: Population data is used from (https://population.un.org/wpp) with the relative risk of death taken from the most recent Italian data from Istituto Superiore di Sanità, last accessed March 13, 2020.(see ref 14) Supp Info analyses breakdown data across regions in Italy over time and geographically, with detailed data sources listed there.    https://population.un.org/wpp<|eot_id|><|start_header_id|>assistant<|end_header_id|>

yes<|eot_id|>