8020
In 1966 he was member of the committee , which advised government on the ministerial responsibility towards members of the royal house , together with Willem Drees .
 person: Willem Drees
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:
 person: Willem Drees