<|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: We collected data from publicly available data sources: https://ourworldindata.org/coronavirus-source-data https://web.sapmed.ac.jp/canmol/coronavirus/index.html The COVID Tracking Project, https://covidtracking.com/data/us-daily NIPPON TELEVISION NETWORK CORPORATION, COVID-19 special site. https://www.news24.jp/archives/corona¥_map/index2.html<|eot_id|><|start_header_id|>assistant<|end_header_id|>

yes<|eot_id|>