<|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: With the present I certify the availability of all the data used and elaborated in the paper, at the links given below.   https://github.com/pcm-dpc/COVID-19   https://www.eea.europa.eu/publications/air-quality-in-europe-2019   https://www.eea.europa.eu/themes/air/air-quality-and-covid19/monitoring-covid-19-impacts-on   https://www.legambiente.it/malaria-di-citta/<|eot_id|><|start_header_id|>assistant<|end_header_id|>

yes<|eot_id|>