Deep is related to Insight. Insight is related to Perception. 
Source is related to Chicken. Chicken is related to Feed. Feed is related to Milk. Formula is a type of Milk. 
Deep <--RelatedTo--> Insight <--RelatedTo--> Perception 
Source <--RelatedTo--> Chicken <--RelatedTo--> Feed <--RelatedTo--> Milk <--IsA-- Formula 