Create ER model about super market.

 

The requirement says there's a bundle product which could be combined food, drink, sundry -> 3 entities

 ( e.g.  2 foods or 1 food + 1 drink) 

 

It says "this needs to be flexible enough to adapt to any combination of food, drink, and or sundry items"

 

I don't understand what "this needs to be flexible enough to adapt to any combination of food, drink, and or sundry items" wants me to do :( 

 

How can I draw that requirement in ER diagram?