Marble is a type of Rock. Marble is related to Statue. Statue is related to Life. Dying requires Life. 
Doll is related to Girl. Girl is related to Bar. Bar is related to Loud. Loud is related to Bell. 
Rock <--IsA-- Marble <--RelatedTo--> Statue <--RelatedTo--> Life <--HasPrerequisite-- Dying 
Doll <--RelatedTo--> Girl <--RelatedTo--> Bar <--RelatedTo--> Loud <--RelatedTo--> Bell 