<|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 believe our paper meets the data sharing requirements. per the policies on sharing: if proprietary data are used, the manuscript must include an analysis of public data that validates the conclusions so that others can reproduce the analysis and build on the findings. we do use two data sets in the paper. one is proprietary and the other is publicly available (enron data), which validates the conclusions on the proprietary data, allowing others to reproduce the analysis and build on the findings. we provide these references on enron data: klimt b, yang y (2004) the enron corpus: a new dataset for email classification research. machine learning: ecml 2004: 217{226. lee c (2011). communication networks part 1: the enron e-mail dataset. url http://sociograph.blogspot.com/2011/04/communication-networks-part-1-enron-e.html.our factor graph source code is also publicly available.<|eot_id|><|start_header_id|>assistant<|end_header_id|>

yes<|eot_id|>