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A tree that wants to touch the sky must extend its roots into the earth . The more it wants to rise upward , the more it has to grow downward . - {@Gautam Baid@} , The Joys of Compounding
 Gautam Baid
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: group, creative work, person, event, product, location, corporation 
Text: {0} 
Answer:
 Gautam Baid