"Questions about pre-processing and dictionary"

Unknown
edited November 5 in Altair RapidMiner
First of all, sorry for my bad English.
Anyway, I'm having some problems with the pre-processing of RapidMiner. I wonder if anyone knows how to help me, that is my questions:
1 – Does it exist a list of English words that can be used as a dictionary in RapidMiner? Where can I find such a list? And how can I use such list?
2 – Is there a list of words specifically for finance? Where do I get this?
3 - "Stem", "Open WordNet Dictionary", "Remove words not in Dictionary" in RapidMiner, they request to load files? They know where to find them?
[/glow][/glow][/glow]