Eat is related to Necessity. Necessity is related to Invention. 
Tail is related to Rabbit. Rabbit is a type of Game. Game is related to Life. Life can be Brutal. 
Eat <--RelatedTo--> Necessity <--RelatedTo--> Invention 
Tail <--RelatedTo--> Rabbit --IsA--> Game <--RelatedTo--> Life --HasProperty--> Brutal 