<|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 data used in this analysis are fully available from national sources, including the center for disease control and prevention, the united states (u.s.) census bureau, u.s. department of agriculture, and u.s. department of health and human services. the dataset used for this study is included as a supplementary file.<|eot_id|><|start_header_id|>assistant<|end_header_id|>

yes<|eot_id|>