OrcaTec LLC, a provider of information retrieval software and consulting, announced the release of a beta test version of Truevert, a semantic search engine. The first release of the Truevert semantic search engine focuses on "green" issues related to environmental and sustainability issues. Truevert uses YAHOO's BOSS interface to retrieve relevant documents from the web. Truevert uses OrcaTec's patent pending semantic search to identify and rank the most relevant documents. In addition, Truevert displays a list of the themes for the retrieved documents. Users can organize the returned pages by theme or can conduct new searches for any theme. Truevert also allows users to identify the interesting phrases in document so that they can quickly know what it is about and what other topics they might find interesting.