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that an object may have,
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may happen to have its entire existence,
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but could've existed without.
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So my car is blue.
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That's a contingent property of my car.
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I could take it to the paint shop
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and get it painted red,
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in which case it would be red.
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It would no longer be blue,
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but the car would still exist.
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My car is blue, but it could be red;
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it could exist as a red car.