[TYPO3-extbase-kickstarter] How can I make relations in the kickstarter

[Hanspeter Jakober]

Hi

First of all thanks alot for the extbase_kickstarter. I just try to make 
  the example extension in your <extbase extension programming> 
documentation.
Now, who can I make a relation between the two entities (food/fridge)?

Thanks for your feedback.

Greetings - Hanspeter