3215
He played in Major League Baseball as an infielder for the Boston Red Sox , Chicago White Sox and Oakland Athletics .
 Major League Baseball, Boston Red Sox, Chicago White Sox, Oakland Athletics
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Major League Baseball, Boston Red Sox, Chicago White Sox, Oakland Athletics