372147
He played for the Boston Red Caps , Baltimore Orioles , Pittsburg Alleghenys , and Washington Nationals .
 Boston Red Caps, Baltimore Orioles, Pittsburg Alleghenys, Washington Nationals
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Boston Red Caps, Baltimore Orioles, Pittsburg Alleghenys, Washington Nationals