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A refrigerator is made from components of a refrigerator. Thusly a refrigerator exists as a refrigerator.
Refrigerators can also be monsters
In addition we can use the argument of Descarte "I think therefore I am" and apply it to the existence of William Perry. William Perry also thinks, and also is.
it could be an alligator.
Nothing fits the form of a refrigerator, so nothing is a refrigerator.