Rack is a type of Seize. Rack is a synonym of Neck. Neck is related to Collar. Collar is a synonym of Nail. 
Do is related to Flow. Flow is a synonym of Stream. 
Seize <--IsA-- Rack <--Synonym--> Neck <--RelatedTo--> Collar <--Synonym--> Nail 
Do <--RelatedTo--> Flow <--Synonym--> Stream 