Astronomer is a type of Scientist. Scientist is a type of Magazine. Magazine is related to People. 
Farmer is related to Rural. Rural is related to Country. Country is related to Foreign. 
Astronomer --IsA--> Scientist --IsA--> Magazine <--RelatedTo--> People 
Farmer <--RelatedTo--> Rural <--RelatedTo--> Country <--RelatedTo--> Foreign 