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He was a baseball pitcher for the San Francisco Giants , Houston Astros and Toronto Blue Jays .
 San Francisco Giants, Houston Astros, Toronto Blue Jays
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 San Francisco Giants, Houston Astros, Toronto Blue Jays