<|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: For the e + e − → qqqq process , the Poissonian probability is replaced by the likelihood as a function of the signal cross section derived from a fit to the neural - network output distribution . In this fit the e + e − → qq(γ ) background contribution is fixed to the value derived directly from data by performing a fit with both the signal and background normalisations left free . The results for the e + e − → qq(γ ) background cross sections are shown in Table 4 . These values are in good agreement with the Monte Carlo predictions . As a cross - check , the e + e − → qqqq cross section is also determined by repeating the full fit after applying a cut on the output of the neural network at 0.6 , which minimises the expected statistical uncertainty . All values agree well with those derived from the neural - network fit .<|eot_id|><|start_header_id|>assistant<|end_header_id|>

no<|eot_id|>