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System1 Instance of Concept: Date1
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Attribute: YR =
Int 1
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Attribute: MO =
String “Aug”
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Attribute: DY =
Int 12
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System2: Instance of Concept = Date2
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Attribute:
DayOfWeek = Sunday
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Attribute:
ActualDate =
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String “12082001”
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Semantically
Equivalent? Then How?
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