<|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: nearly all of the data are gis files downloadable from public souces. sources are described in table 1 in the manuscript. they are the geospatial portal of the appalachian landscape conservation cooperative, the national conservation easement database, the us census, usgs national land cover data, national elevation data, and us department of agriculture. land trust office addresses can be obtained from the land trust alliance (lta), a non-profit conservation group based in washington dc. by contacting (202) 638-4725 or census@lta.org.<|eot_id|><|start_header_id|>assistant<|end_header_id|>

yes<|eot_id|>