Job is related to Harvest. Harvest is related to Growth. Growth is related to Leaf. Leaf is related to Tobacco. 
Theory is related to Experiment. Experiment is related to Group. Fold is a type of Group. 
Job <--RelatedTo--> Harvest <--RelatedTo--> Growth <--RelatedTo--> Leaf <--RelatedTo--> Tobacco 
Theory <--RelatedTo--> Experiment <--RelatedTo--> Group <--IsA-- Fold 