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```mermaid
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erDiagram
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CUSTOMER {
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string name
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string custNumber
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string sector
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}
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ORDER {
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int orderNumber
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string deliveryAddress
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}
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LINE-ITEM {
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string productCode
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int quantity
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float pricePerUnit
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}
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CUSTOMER ||--o{ ORDER : places
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ORDER ||--|{ LINE-ITEM : contains
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``` |
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\ No newline at end of file |
