<|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: the database can be accessed at (http://stbase.org). software for the database retrieval engine and the code implementing the deepak et al. [37] multree reduction algorithm is available at (http://code.google.com/p/search-tree/). all code is distributed according to a gnu gpl v3 license (http://www.gnu.org/licenses/gpl.html). the collection of 1 billion bootstrap trees is available at the iplant site: (http://iplantcollaborative.org).<|eot_id|><|start_header_id|>assistant<|end_header_id|>

yes<|eot_id|>