Describe is related to Do. Do is related to Possible. 
Pasta is related to Egg. Egg is related to Container. you are likely to find Beer in/at/on Container. Beer is related to Club. 
Describe <--RelatedTo--> Do <--RelatedTo--> Possible 
Pasta <--RelatedTo--> Egg <--RelatedTo--> Container <--AtLocation-- Beer <--RelatedTo--> Club 