129893
After signing with the Reds , Guevara began his career with the Billings Mustangs of the rookie league .
 Reds, Guevara, Billings Mustangs
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Reds, Guevara, Billings Mustangs