| (subclass Correspondence Document) | Media.kif 952-952 | 子類 Correspondence and Document |
| (subclass Letter Correspondence) | Media.kif 953-953 | 子類 信件 and Correspondence |
| (subclass FaxMessage Correspondence) | Media.kif 1010-1010 | 子類 FaxMessage and Correspondence |
| (subclass EmailMessage Correspondence) | Media.kif 1028-1028 | 子類 EmailMessage and Correspondence |
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