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With the northward expansion of Thiruvananthapuram city , Sreekariyam has become a bustling urban center , and is now home to educational institutions , a major research institute , local business establishments and major recent real estate ventures .
 Thiruvananthapuram, Sreekariyam
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Thiruvananthapuram, Sreekariyam