Park is related to Ride. you are likely to find Ride in/at/on Fair. Fair is related to Rule. Rule is related to Norm. 
Cookie is related to Milk. Milk is related to Cream. 
Park <--RelatedTo--> Ride --AtLocation--> Fair <--RelatedTo--> Rule <--RelatedTo--> Norm 
Cookie <--RelatedTo--> Milk <--RelatedTo--> Cream 