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| 2-elementsvillkor, två villkorselement (A constraint that applies to two elements, such as two classes or two associations. The constraint is shown as a dashed arrow from one element to the other, labeled by the constraint string in braces ({ })) | |||
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2 : 2 Phrasen in 2 Thematiken |
| Kommunikation | 1 |
| Landwirtschaft | 1 |