How to draw a logical erd from the rules

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How to draw a logical ERD from the rules given:

1. Country-City A country can have many cities. A country may not have any cities. A city must belong to one and only one country.

2. A vegetable can have many nutrients. A vegetable must have at least one nutrient. A nutrient can be obtained from more than one vegetable

3. A household may have taxpayers. A household may not have any taxpayers. A taxpayer must belong to a house.

4. A student can have only one UPass. A student may not have a UPass. A UPass must belong to only one student

Reference no: EM133025664

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