370638
It is Van Campen 's first design in Amsterdam and was an important stepping stone to gaining the commission for the Amsterdam City Hall , today the Royal Palace of Amsterdam .
 Campen, Amsterdam, Amsterdam, Amsterdam
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Campen, Amsterdam, Amsterdam, Amsterdam