(subclass Character SymbolicString) | Merge.kif 1340-1340 | 子類 Character and SymbolicString |
(subclass AlphabeticCharacter Character) | Mid-level-ontology.kif 19465-19465 | 子類 字母字符 and Character |
(subclass DigitCharacter Character) | Mid-level-ontology.kif 19469-19469 | 子類 數字字符 and Character |