> Another observation, which I made, is not related with your question, but with your message itself. I noticed several times here in UT word 'seperate'. Is it a usual typo or a common English word? :)
>

It is a typo of the word "separate", meaning unique, distinct or individual. It is a very, very common typo since a lot of people pronounce the word se-per-it (or se-prit). One oddity I notice is that many people locally pronounce the same word differently as se-par-ate when using it as a verb meaning to split or part something. Perhaps this belongs in the "Phrases, sayings" thread in Chatter :)