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| . dot
| - dash
| _ underscore
| ! exclamation mark
| # number sign
| $ dollar sign
| % percent sign
| & ampersand
| ' quote
| * asterisk
| + plus
| / slash
| = equal sign
| ? question mark
| ^ circumflex
| ` right single quote
| { left brace
| | vertical bar
| } right brace
| ~ tilde
| , comma
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