RDFa Reader extraction tool

I am beginner in RDF and I want to extract RDF from HTML I am using GRDDL but it doesn't work with me well I am getting Security Exception every time:( will you please sugg开发者_如何学编程est to me another tool ?

appreciate your help.

I normally use rapper which you can download and install from Redland's libraries

Once you have it installed you can simple do things like:

rapper -i rdfa -o turtle http://stores.bestbuy.com/492/

You can find a list of RDFa parsers at http://rdfa.info/dev/