Create xslt to remove some tags from xml feed (RSS)

I currently have a xml(rss) feed (see [login to view URL]) that has to many tags. I would like a part of the xml removed to process it further. Will use a command line tool to process the xml with the xslt, this xslt should work both on a standard macbook as well os on ubuntu. I think you need to know which xslt processers are used. Will let you know when we start the project. The request is the following: - Create a .xslt that gives a new output without the following tags: - The can be different for each file so don't hard code this in the xslt. - Sometimes the feed has more than one: all of them should be removed. - Sometimes that particular tag is empty, still remove it from the file. - Keep the tags for Alinea in there, so don't remove the rdf:li out of the xml file. This should be a fairly simple task in my opinion, I do have some programming skills myself but xslt is a whole different ballgame for me.