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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: From the disease-mapping point of view, population stratification is important in the analysis of association genetic data, especially when that **data** is being used to infer the contribution of genetics to a disease. The presence of undetected population structure can mimic association (leading to more false positives) or mimic lack of association (leading to false negatives) [19]. While there Unrooted radial neighbour-joining tree showing the genetic relationships of the four populations groups studied Figure 3 Unrooted radial neighbour-joining tree showing the genetic relationships of the four populations groups studied.<|eot_id|><|start_header_id|>assistant<|end_header_id|>

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