<|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: data used are all in the public domain: 1. usda cropland data layer (cdl)<u+200b>(http://nassgeodata.gmu.edu/cropscape/), 2. usda soil survey geographic dataset (ssurgo) land capability class (lcc) (url: https://gdg.sc.egov.usda.gov/), and 3. usgs public areas database (pad) (url: http://gapanalysis.usgs.gov/data/).<|eot_id|><|start_header_id|>assistant<|end_header_id|>

yes<|eot_id|>