43899
Vrina is situated on a low hill , 3 km southeast of Krestena , 3 km southwest of Gryllos and 5 km east of Kato Samiko .
 Krestena, Gryllos, Kato Samiko
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Krestena, Gryllos, Kato Samiko