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He made his senior debuts in the 2008 – 09 season with Real Madrid Castilla , in Segunda División B , appearing in 24 games ( but only starting in three of those ) .
 Real Madrid Castilla, Segunda División B
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Real Madrid Castilla, Segunda División B