New York has $10$ national parks.

Each Park Ranger in New York works at two or more national parks.

One of the biggest national parks is Yellow Earth.

Park Ranger Ricardo works only at Yellow Earth national park.

Based on the above information, which of these statements MUST be true?

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Yellow Earth is the biggest national park in New York.

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Ricardo does not work in New York.

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Some of the national parks in New York are bigger than Yellow Earth.

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Ricardo likes working at one of the biggest national parks.

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The national parks in New York are smaller than in most other states.