6212
It is ideally situated at the heart of Yvelines , formed in the shape of a triangle in the south by la Vallee de Chevreuse and the massif forestier de Rambouillet , and the towns of Versailles and Saint Germain en Laye in the north .
 location: Yvelines
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 location: Yvelines