Table 1.
Orthographic Feature
| Features 1–11 | e.g. | Features 12–21 | e.g. |
| Comma | , | OneCap | T |
| Dot | . | AllCaps | CSF |
| Parenthesis | () [] | CapLowAlpha | All |
| RomanDigit | II | CapMixAlpha | IgM |
| GreekLetter | Beta | LowMixAlpha | kDa |
| StopWord | in, at | AlphaDigitAlpha | H2A |
| ATCGsequence | ACAG | AlphaDigit | T4 |
| OneDigit | 5 | DigitAlphaDigit | 6C2 |
| AllDigits | 60 | DigitAlpha | 19D |
| DigitCommaDigit | 1,25 | Others | Other |
| DigitDotDigit | 0.5 |