Accuracy is related to Time. Time is related to Passage. Passage is a type of Delivery. Delivery is a type of Birth. 
Building is related to Sky. Hide is etymologically related to Sky. Hide is related to Dark. 
Accuracy <--RelatedTo--> Time <--RelatedTo--> Passage --IsA--> Delivery --IsA--> Birth 
Building <--RelatedTo--> Sky <--EtymologicallyRelatedTo-- Hide <--RelatedTo--> Dark 