Punctuation

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Semicolon

http://en.wikipedia.org/wiki/Semicolon The semicolon (;) is a punctuation mark with several uses.
The colon is a punctuation mark consisting of two equally sized dots centered on the same vertical line. In Unicode, it is encoded at U+003A : colon (HTML: : ). [ edit ] Usage

Colon (punctuation)

http://en.wikipedia.org/wiki/Colon_(punctuation)
http://en.wikipedia.org/wiki/Dash A dash is a punctuation mark, similar to a hyphen or minus sign but differing primarily in length and serving different functions. The most common versions of the dash are the en dash ( – ) and the em dash ( — ), named for the length of a typeface 's lower-case n and upper-case M respectively.

Dash

http://en.wikipedia.org/wiki/Comma The comma is a punctuation mark, and it appears in several variants in various languages.

Comma

http://en.wikipedia.org/wiki/Hyphen The hyphen ( ‐ ) is a punctuation mark used to join words and to separate syllables of a single word.

Hyphen