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Term 1: Term 2:

(subclass SpecialCharacterPress SingleKeyPress) ComputerInput.kif 1384-1384 SpecialCharacterPress 是 SingleKeyPress 的 subclass
(subclass EnterKeyPress SpecialCharacterPress) ComputerInput.kif 1409-1409 EnterKeyPress 是 SpecialCharacterPress 的 subclass


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