19955
In prison , he was placed in solitary confinement for his own protection , but was brutalized and rape d by unidentified attackers , who left him in a catatonic state and with two distinctive scars running down from either side of his mouth , giving his face a permanent frown .
 None
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 None