34921
During the Abraham Lincoln assassination trial in May & June 1865 , Frederick Stone and Thomas Ewing , Jr. appeared as defense counsels for Dr. Samuel Mudd .
 Frederick Stone, Dr. Samuel Mudd
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Frederick Stone, Dr. Samuel Mudd