From: Michael Bannister <rubyforum@...>
Date: 2006-01-24T03:56:09+09:00
Subject: Re: greetings

I think you mean colons ( : )  not semicolons ( ; ) !

The colons denote Ruby _symbols_.  There's an article with some 
explanation here:

http://glu.ttono.us/articles/2005/08/19/understanding-ruby-symbols

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