Factor is related to Term. Term is related to Slope. Slope is related to Lift. 
Art is related to Creativity. Writing requires Creativity. Essay is a type of Writing. 
Factor <--RelatedTo--> Term <--RelatedTo--> Slope <--RelatedTo--> Lift 
Art <--RelatedTo--> Creativity <--HasPrerequisite-- Writing <--IsA-- Essay 