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He was drafted in the 3rd round of the 1968 Major League Baseball Draft by the Astros , making his major league debut with them three years later .
 Major, Baseball, Astros
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, Baseball, Astros