x-query tool

Hi,

I have a file with Some RDF documents, and i need to build a research
engine.
I want to make queries to the rdf documents, which tool should i use?
I already take a look at the x-query working group but i really don't know
which tool to use.

Regards,
Teresa

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Teresa Susana Mendes Pereira
Escola de Engenharia
Universidade do Minho
Campus de Azurém
4800-058 Guimarães
Portugal
e-mail: tpereira@dsi.uminho.pt
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