| BTS Grammar Rules / Brackets | |
| Correctly unwritten consonants / tokens | ( ) |
| Partly destroyed consonants / tokens | ⸢ ⸣ |
| Completely destroyed consonants / tokens | [ ] |
| Incorrectly unwritten consonants / tokens that have to be added | 〈 〉 |
| Incorrectly written consonants / tokens | { } |