<|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 burnt area map data used in these analyses are available for public download from the north australia fire information portal (www.firenorth.org.au). landscape boundaries used to differentiate upland and lowland landscape units for the four study sites are provided as gis shape files in supporting information. all empirical and statistical models used in this paper relating to calculation of carbon credits have been previously published, and appropriate references for these are provided in the main text and supplementary information.<|eot_id|><|start_header_id|>assistant<|end_header_id|>

yes<|eot_id|>