A number of special sequences starting with \ can be used to specify particular characters:
| \s | Space |
| \n | End of paragraph (¶) or end of line (¬) |
| \b | Left square bracket ('[') |
| \k | Right square bracket (']') |
| \o | End of punctuation, i.e. an alphabetical character or the end of the text. What is an alphabetical character, GN4 determines from the Alpha keyword. |
| \a | The special Bell character ('@') |
| \c | The special tabulation character ('»') |
| \c | The special start tabulation character ('|') |