Hi, 
I have a small question regarding the instantiation of entites inside other 
entites. 

Lets say the following: 
class Info {
 private PhoneNumber phone; 
 private Email mail;

}

now when I am in the view and want to use the info.phone.description I would 
have had to write "private PhoneNumber phone = new PhoneNumber" instead, 
however I only want to do this if the customer decides to really enter one, 
otherwise there are lots of blanks in the DB... if I do as I want, I get a 
"not-null property references a null or transient value property"-Exception... 
Do you have any clues on how to solve this problem?
Thanks!

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