<|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 data are available from websites cited in the text. all mod15 and mod17 data are available from http://daac.ornl.gov/modis/. all sea surface temperature data are available from http://gdata1.sci.gsfc.nasa.gov/daac-bin/g3/gui.cgi?instance_id=ocean_month. all multivariate enso index data are available from http://www.esrl.noaa.gov/psd/enso/mei/table.html.<|eot_id|><|start_header_id|>assistant<|end_header_id|>

yes<|eot_id|>