Area is related to Slope. Slope is related to Ladder. Ladder is a type of Route. 
Debate is related to Political. Political is related to Poll. Poll is related to Vote. 
Area <--RelatedTo--> Slope <--RelatedTo--> Ladder --IsA--> Route 
Debate <--RelatedTo--> Political <--RelatedTo--> Poll <--RelatedTo--> Vote 