971
Baryons are strongly interacting fermions ; that is , they are acted on by the strong nuclear force and are described by Fermi–Dirac statistics , which apply to all particles obeying the Pauli exclusion principle .
 Fermi–Dirac, Pauli
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
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Text: {0} 
Answer:
 Fermi–Dirac, Pauli