Red is related to Apple. Apple is related to Ball. Ball is related to Child. Child is related to Infant. 
Tree is related to Item. Item is related to Dress. Dress is related to Sack. 
Red <--RelatedTo--> Apple <--RelatedTo--> Ball <--RelatedTo--> Child <--RelatedTo--> Infant 
Tree <--RelatedTo--> Item <--RelatedTo--> Dress <--RelatedTo--> Sack 