<|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 describing climate for the period 1961-1990 are freely available at the u.s. forest service, rocky mountain research station website (http://forest.moscowfsl.wsu.edu/climate).* data describing climate for the period 2071-2100 are freely available on the cmip3 website (http://www-pcmdi.llnl.gov/ipcc/info_for_analysts.php).* observed species presence/absence data are available from the dryad database (doi: 10.5061/dryad.1sf74).<|eot_id|><|start_header_id|>assistant<|end_header_id|>

yes<|eot_id|>