Re: Just to further make people think ...
Is it possible that the computer sees "j" and "J" as the same thing? No matter how unlikely but it's possible, isn't it?
There is no room in SQL database for possibilities and probabilities, only for the certainty. The AI database is no different, all lexical noise should be purged.
I've personally seen a few cases where capital letters were ignored and all words were treated as starting with a small letter, no matter what letter they really started with, because it didn't matter.