70958
In the late 1920 s and early 1930 s , St. Louis Cardinals general manager Branch Rickey invested in several minor league clubs and developed the first modern farm system .
 St. Louis Cardinals, Branch Rickey
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 St. Louis Cardinals, Branch Rickey