Construction is related to Nest. Nest is related to Hay. Hay is related to Natural. 
Nose is related to Slope. Slope is related to Ladder. Ladder is a type of Route. 
Construction <--RelatedTo--> Nest <--RelatedTo--> Hay <--RelatedTo--> Natural 
Nose <--RelatedTo--> Slope <--RelatedTo--> Ladder --IsA--> Route 