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The truth table of p EQ q ( also written as p = q , p ↔ q , or p ≡ q , or p = = q ) is as follows : Alternative descriptions The form ( x = y ) is equivalent to the form ( x ∧ y ) ∨ ( ¬ x ∧ ¬ y ) .
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Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
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